136625580 has 288 divisors, whose sum is σ = 538137600. Its totient is φ = 27247104.

The previous prime is 136625563. The next prime is 136625603. The reversal of 136625580 is 85526631.

136625580 = 305² + 306² + ... + 759².

136625580 is a `hidden beast` number, since 13 + 6 + 62 + 5 + 580 = 666.

It is a super-2 number, since 2×136625580² = 37333098220672800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311001 + ... + 311439.

Almost surely, 2^136625580 is an apocalyptic number.

136625580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136625580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269068800).

136625580 is an abundant number, since it is smaller than the sum of its proper divisors (401512020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136625580 is a wasteful number, since it uses less digits than its factorization.

136625580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 488 counting only the distinct ones).

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

The square root of 136625580 is about 11688.6945378857. The cubic root of 136625580 is about 515.0436133612.

The spelling of 136625580 in words is "one hundred thirty-six million, six hundred twenty-five thousand, five hundred eighty".