253451 has 4 divisors (see below), whose sum is σ = 276504. Its totient is φ = 230400.

The previous prime is 253447. The next prime is 253469. The reversal of 253451 is 154352.

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

It is a cyclic number.

It is not a de Polignac number, because 253451 - 2² = 253447 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253451.

It is not an unprimeable number, because it can be changed into a prime (253481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11510 + ... + 11531.

It is an arithmetic number, because the mean of its divisors is an integer number (69126).

2²⁵³⁴⁵¹ is an apocalyptic number.

253451 is a deficient number, since it is larger than the sum of its proper divisors (23053).

253451 is a wasteful number, since it uses less digits than its factorization.

253451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23052.

The product of its digits is 600, while the sum is 20.

The square root of 253451 is about 503.4391720953. The cubic root of 253451 is about 63.2845946970.

Subtracting from 253451 its reverse (154352), we obtain a palindrome (99099).

The spelling of 253451 in words is "two hundred fifty-three thousand, four hundred fifty-one".