113400253 has 4 divisors (see below), whose sum is σ = 113421568. Its totient is φ = 113378940.

The previous prime is 113400239. The next prime is 113400257. The reversal of 113400253 is 352004311.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113400253 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 113400253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113400257) 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, 4708 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (28355392).

Almost surely, 2^113400253 is an apocalyptic number.

It is an amenable number.

113400253 is a deficient number, since it is larger than the sum of its proper divisors (21315).

113400253 is a wasteful number, since it uses less digits than its factorization.

113400253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21314.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 113400253 is about 10648.9554886853. The cubic root of 113400253 is about 484.0289537696.

Adding to 113400253 its reverse (352004311), we get a palindrome (465404564).

The spelling of 113400253 in words is "one hundred thirteen million, four hundred thousand, two hundred fifty-three".