265061943 has 32 divisors (see below), whose sum is σ = 430142400. Its totient is φ = 160570368.

The previous prime is 265061941. The next prime is 265061971. The reversal of 265061943 is 349160562.

It is a happy number.

It is not a de Polignac number, because 265061943 - 2¹ = 265061941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265061898 and 265061907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265061941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3355 + ... + 23267.

It is an arithmetic number, because the mean of its divisors is an integer number (13441950).

Almost surely, 2^265061943 is an apocalyptic number.

265061943 is a deficient number, since it is larger than the sum of its proper divisors (165080457).

265061943 is a wasteful number, since it uses less digits than its factorization.

265061943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19968 (or 19962 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 265061943 is about 16280.7230490541. The cubic root of 265061943 is about 642.3658714597.

The spelling of 265061943 in words is "two hundred sixty-five million, sixty-one thousand, nine hundred forty-three".