253868151 has 4 divisors (see below), whose sum is σ = 338490872. Its totient is φ = 169245432.

The previous prime is 253868149. The next prime is 253868171. The reversal of 253868151 is 151868352.

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

It is not a de Polignac number, because 253868151 - 2¹ = 253868149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253868171) 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, 42311356 + ... + 42311361.

It is an arithmetic number, because the mean of its divisors is an integer number (84622718).

Almost surely, 2^253868151 is an apocalyptic number.

253868151 is a deficient number, since it is larger than the sum of its proper divisors (84622721).

253868151 is an equidigital number, since it uses as much as digits as its factorization.

253868151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84622720.

The product of its digits is 57600, while the sum is 39.

The square root of 253868151 is about 15933.2404425465. The cubic root of 253868151 is about 633.1929537130.

The spelling of 253868151 in words is "two hundred fifty-three million, eight hundred sixty-eight thousand, one hundred fifty-one".