253401 has 4 divisors (see below), whose sum is σ = 337872. Its totient is φ = 168932.

The previous prime is 253387. The next prime is 253417. The reversal of 253401 is 104352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253401 - 2⁵ = 253369 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253401.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42231 + ... + 42236.

It is an arithmetic number, because the mean of its divisors is an integer number (84468).

2²⁵³⁴⁰¹ is an apocalyptic number.

It is an amenable number.

253401 is a deficient number, since it is larger than the sum of its proper divisors (84471).

253401 is an equidigital number, since it uses as much as digits as its factorization.

253401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84470.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 253401 is about 503.3895112137. The cubic root of 253401 is about 63.2804328960.

Adding to 253401 its reverse (104352), we get a palindrome (357753).

The spelling of 253401 in words is "two hundred fifty-three thousand, four hundred one".