265273947 has 10 divisors (see below), whose sum is σ = 396273548. Its totient is φ = 176849244.

The previous prime is 265273919. The next prime is 265273949. The reversal of 265273947 is 749372562.

It is not a de Polignac number, because 265273947 - 2¹⁰ = 265272923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265273949) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1637413 + ... + 1637574.

Almost surely, 2^265273947 is an apocalyptic number.

265273947 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

265273947 is a deficient number, since it is larger than the sum of its proper divisors (130999601).

265273947 is an equidigital number, since it uses as much as digits as its factorization.

265273947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274999 (or 3274990 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 265273947 is about 16287.2326378670. The cubic root of 265273947 is about 642.5370865863.

The spelling of 265273947 in words is "two hundred sixty-five million, two hundred seventy-three thousand, nine hundred forty-seven".