265032643 has 2 divisors, whose sum is σ = 265032644. Its totient is φ = 265032642.

The previous prime is 265032631. The next prime is 265032659. The reversal of 265032643 is 346230562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265032643 is a prime.

It is not a weakly prime, because it can be changed into another prime (265032623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132516321 + 132516322.

It is an arithmetic number, because the mean of its divisors is an integer number (132516322).

Almost surely, 2^265032643 is an apocalyptic number.

265032643 is a deficient number, since it is larger than the sum of its proper divisors (1).

265032643 is an equidigital number, since it uses as much as digits as its factorization.

265032643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 265032643 is about 16279.8231870005. The cubic root of 265032643 is about 642.3422015037.

The spelling of 265032643 in words is "two hundred sixty-five million, thirty-two thousand, six hundred forty-three".