253946761 has 16 divisors (see below), whose sum is σ = 277235200. Its totient is φ = 231724800.

The previous prime is 253946753. The next prime is 253946773. The reversal of 253946761 is 167649352.

It is a cyclic number.

It is not a de Polignac number, because 253946761 - 2³ = 253946753 is a prime.

It is a super-2 number, since 2×253946761² = 128977914844782242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253946701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141055 + ... + 142843.

It is an arithmetic number, because the mean of its divisors is an integer number (17327200).

Almost surely, 2^253946761 is an apocalyptic number.

It is an amenable number.

253946761 is a deficient number, since it is larger than the sum of its proper divisors (23288439).

253946761 is a wasteful number, since it uses less digits than its factorization.

253946761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080.

The product of its digits is 272160, while the sum is 43.

The square root of 253946761 is about 15935.7071069972. The cubic root of 253946761 is about 633.2583028074.

The spelling of 253946761 in words is "two hundred fifty-three million, nine hundred forty-six thousand, seven hundred sixty-one".