253964145 has 8 divisors (see below), whose sum is σ = 406342656. Its totient is φ = 135447536.

The previous prime is 253964129. The next prime is 253964201. The reversal of 253964145 is 541469352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253964145 - 2⁴ = 253964129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8465457 + ... + 8465486.

It is an arithmetic number, because the mean of its divisors is an integer number (50792832).

Almost surely, 2^253964145 is an apocalyptic number.

It is an amenable number.

253964145 is a deficient number, since it is larger than the sum of its proper divisors (152378511).

253964145 is a wasteful number, since it uses less digits than its factorization.

253964145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930951.

The product of its digits is 129600, while the sum is 39.

The square root of 253964145 is about 15936.2525394147. The cubic root of 253964145 is about 633.2727524387.

The spelling of 253964145 in words is "two hundred fifty-three million, nine hundred sixty-four thousand, one hundred forty-five".