253135923 has 4 divisors (see below), whose sum is σ = 337514568. Its totient is φ = 168757280.

The previous prime is 253135889. The next prime is 253135957. The reversal of 253135923 is 329531352.

It is a happy number.

253135923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (253135889) and next prime (253135957).

It is a cyclic number.

It is not a de Polignac number, because 253135923 - 2⁹ = 253135411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253130923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42189318 + ... + 42189323.

It is an arithmetic number, because the mean of its divisors is an integer number (84378642).

Almost surely, 2^253135923 is an apocalyptic number.

253135923 is a deficient number, since it is larger than the sum of its proper divisors (84378645).

253135923 is an equidigital number, since it uses as much as digits as its factorization.

253135923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84378644.

The product of its digits is 24300, while the sum is 33.

The square root of 253135923 is about 15910.2458497661. The cubic root of 253135923 is about 632.5835979220.

The spelling of 253135923 in words is "two hundred fifty-three million, one hundred thirty-five thousand, nine hundred twenty-three".