253681135 has 8 divisors (see below), whose sum is σ = 304730496. Its totient is φ = 202736160.

The previous prime is 253681079. The next prime is 253681147. The reversal of 253681135 is 531186352.

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

It is not a de Polignac number, because 253681135 - 2²⁵ = 220126703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253681135.

It is a congruent number.

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, 20644 + ... + 30553.

It is an arithmetic number, because the mean of its divisors is an integer number (38091312).

Almost surely, 2^253681135 is an apocalyptic number.

253681135 is a deficient number, since it is larger than the sum of its proper divisors (51049361).

253681135 is an equidigital number, since it uses as much as digits as its factorization.

253681135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52193.

The product of its digits is 21600, while the sum is 34.

The square root of 253681135 is about 15927.3706241803. The cubic root of 253681135 is about 633.0374316400.

The spelling of 253681135 in words is "two hundred fifty-three million, six hundred eighty-one thousand, one hundred thirty-five".