265945136 has 40 divisors (see below), whose sum is σ = 539236320. Its totient is φ = 126821376.

The previous prime is 265945091. The next prime is 265945151. The reversal of 265945136 is 631549562.

265945136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 265945093 and 265945102.

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 7 ways as a sum of consecutive naturals, for example, 158510 + ... + 160178.

It is an arithmetic number, because the mean of its divisors is an integer number (13480908).

Almost surely, 2^265945136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265945136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269618160).

265945136 is an abundant number, since it is smaller than the sum of its proper divisors (273291184).

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

265945136 is a wasteful number, since it uses less digits than its factorization.

265945136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133 (or 2127 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The square root of 265945136 is about 16307.8243797264. The cubic root of 265945136 is about 643.0785401991.

The spelling of 265945136 in words is "two hundred sixty-five million, nine hundred forty-five thousand, one hundred thirty-six".