118473731 has 16 divisors (see below), whose sum is σ = 127501920. Its totient is φ = 109693440.

The previous prime is 118473727. The next prime is 118473749. The reversal of 118473731 is 137374811.

It is a cyclic number.

It is not a de Polignac number, because 118473731 - 2² = 118473727 is a prime.

It is a super-2 number, since 2×118473731² = 28072049874120722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118473691 and 118473700.

It is not an unprimeable number, because it can be changed into a prime (118473791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427565 + ... + 427841.

It is an arithmetic number, because the mean of its divisors is an integer number (7968870).

Almost surely, 2^118473731 is an apocalyptic number.

118473731 is a deficient number, since it is larger than the sum of its proper divisors (9028189).

118473731 is a wasteful number, since it uses less digits than its factorization.

118473731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its digits is 14112, while the sum is 35.

The square root of 118473731 is about 10884.5638865322. The cubic root of 118473731 is about 491.1423175372.

The spelling of 118473731 in words is "one hundred eighteen million, four hundred seventy-three thousand, seven hundred thirty-one".