113455431 has 24 divisors (see below), whose sum is σ = 173138640. Its totient is φ = 73374336.

The previous prime is 113455409. The next prime is 113455469. The reversal of 113455431 is 134554311.

It is a happy number.

113455431 is a `hidden beast` number, since 113 + 4 + 5 + 543 + 1 = 666.

It is not a de Polignac number, because 113455431 - 2⁶ = 113455367 is a prime.

It is a super-2 number, since 2×113455431² = 25744269646791522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3600) is a multiple of the sum of its prime factors (720).

It is a junction number, because it is equal to n+sod(n) for n = 113455395 and 113455404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113455471) 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 23 ways as a sum of consecutive naturals, for example, 336495 + ... + 336831.

It is an arithmetic number, because the mean of its divisors is an integer number (7214110).

Almost surely, 2^113455431 is an apocalyptic number.

113455431 is a deficient number, since it is larger than the sum of its proper divisors (59683209).

113455431 is an frugal number, since it uses more digits than its factorization.

113455431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 377 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 113455431 is about 10651.5459441341. The cubic root of 113455431 is about 484.1074468895.

It can be divided in two parts, 1134 and 55431, that added together give a palindrome (56565).

The spelling of 113455431 in words is "one hundred thirteen million, four hundred fifty-five thousand, four hundred thirty-one".