113158973 has 4 divisors (see below), whose sum is σ = 113204220. Its totient is φ = 113113728.

The previous prime is 113158943. The next prime is 113159009. The reversal of 113158973 is 379851311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41705764 + 71453209 = 6458^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 113158973 - 2¹⁰ = 113157949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113158943) 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, 18638 + ... + 23951.

It is an arithmetic number, because the mean of its divisors is an integer number (28301055).

Almost surely, 2^113158973 is an apocalyptic number.

It is an amenable number.

113158973 is a deficient number, since it is larger than the sum of its proper divisors (45247).

113158973 is an equidigital number, since it uses as much as digits as its factorization.

113158973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45246.

The product of its digits is 22680, while the sum is 38.

The square root of 113158973 is about 10637.6206456143. The cubic root of 113158973 is about 483.6854229890.

The spelling of 113158973 in words is "one hundred thirteen million, one hundred fifty-eight thousand, nine hundred seventy-three".