113153231 has 4 divisors (see below), whose sum is σ = 115008264. Its totient is φ = 111298200.

The previous prime is 113153219. The next prime is 113153233. The reversal of 113153231 is 132351311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132351311 = 7681 ⋅17231.

It is a cyclic number.

It is not a de Polignac number, because 113153231 - 2¹⁴ = 113136847 is a prime.

It is a super-2 number, since 2×113153231² = 25607307371478722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113153233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927425 + ... + 927546.

It is an arithmetic number, because the mean of its divisors is an integer number (28752066).

Almost surely, 2^113153231 is an apocalyptic number.

113153231 is a deficient number, since it is larger than the sum of its proper divisors (1855033).

113153231 is an equidigital number, since it uses as much as digits as its factorization.

113153231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855032.

The product of its digits is 270, while the sum is 20.

The square root of 113153231 is about 10637.3507510094. The cubic root of 113153231 is about 483.6772416708.

The spelling of 113153231 in words is "one hundred thirteen million, one hundred fifty-three thousand, two hundred thirty-one".