135962865 has 24 divisors (see below), whose sum is σ = 238903080. Its totient is φ = 71518464.

The previous prime is 135962831. The next prime is 135962887. The reversal of 135962865 is 568269531.

135962865 is a `hidden beast` number, since 13 + 5 + 9 + 628 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 26718561 + 109244304 = 5169^2 + 10452^2 .

It is not a de Polignac number, because 135962865 - 2¹⁰ = 135961841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 135962865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17410 + ... + 23979.

It is an arithmetic number, because the mean of its divisors is an integer number (9954295).

Almost surely, 2^135962865 is an apocalyptic number.

135962865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135962865 is a deficient number, since it is larger than the sum of its proper divisors (102940215).

135962865 is a wasteful number, since it uses less digits than its factorization.

135962865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41473 (or 41470 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 135962865 is about 11660.3115310012. The cubic root of 135962865 is about 514.2095077229.

It can be divided in two parts, 13596 and 2865, that added together give a palindrome (16461).

The spelling of 135962865 in words is "one hundred thirty-five million, nine hundred sixty-two thousand, eight hundred sixty-five".