136232865 has 24 divisors (see below), whose sum is σ = 244281960. Its totient is φ = 70151424.

The previous prime is 136232861. The next prime is 136232891. The reversal of 136232865 is 568232631.

It is a happy number.

136232865 is a `hidden beast` number, since 1 + 3 + 623 + 28 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56791296 + 79441569 = 7536^2 + 8913^2 .

It is not a de Polignac number, because 136232865 - 2² = 136232861 is a prime.

It is a super-2 number, since 2×136232865² = 37118787012216450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136232861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50892 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (10178415).

Almost surely, 2^136232865 is an apocalyptic number.

136232865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136232865 is a deficient number, since it is larger than the sum of its proper divisors (108049095).

136232865 is a wasteful number, since it uses less digits than its factorization.

136232865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104433 (or 104430 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 136232865 is about 11671.8835240933. The cubic root of 136232865 is about 514.5496613035.

The spelling of 136232865 in words is "one hundred thirty-six million, two hundred thirty-two thousand, eight hundred sixty-five".