136238501025 has 81 divisors (see below), whose sum is σ = 268338408793. Its totient is φ = 66025502400.

The previous prime is 136238501023. The next prime is 136238501027. The reversal of 136238501025 is 520105832631.

The square root of 136238501025 is 369105.

It is a perfect power (a square), and thus also a powerful number.

136238501025 is a `hidden beast` number, since 1 + 3 + 623 + 8 + 5 + 0 + 1 + 0 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (136238501023) and next prime (136238501027).

It can be written as a sum of positive squares in 4 ways, for example, as 4085894241 + 132152606784 = 63921^2 + 363528^2 .

It is not a de Polignac number, because 136238501025 - 2¹ = 136238501023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136238501023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 60901207 + ... + 60903443.

Almost surely, 2^136238501025 is an apocalyptic number.

136238501025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136238501025 is the 369105-th square number.

136238501025 is the 184553-rd centered octagonal number.

It is an amenable number.

136238501025 is a deficient number, since it is larger than the sum of its proper divisors (132099907768).

136238501025 is an equidigital number, since it uses as much as digits as its factorization.

136238501025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Multiplying 136238501025 by its sum of digits (36), we get a square (4904586036900 = 2214630²).

The spelling of 136238501025 in words is "one hundred thirty-six billion, two hundred thirty-eight million, five hundred one thousand, twenty-five".