118634031 has 8 divisors (see below), whose sum is σ = 175754160. Its totient is φ = 79089336.

The previous prime is 118634029. The next prime is 118634039. The reversal of 118634031 is 130436811.

It is not a de Polignac number, because 118634031 - 2¹ = 118634029 is a prime.

It is a super-2 number, since 2×118634031² = 28148066622617922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4393853 = 118634031 / (1 + 1 + 8 + 6 + 3 + 4 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 118633986 and 118634004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118634039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196900 + ... + 2196953.

It is an arithmetic number, because the mean of its divisors is an integer number (21969270).

Almost surely, 2^118634031 is an apocalyptic number.

118634031 is a deficient number, since it is larger than the sum of its proper divisors (57120129).

118634031 is an equidigital number, since it uses as much as digits as its factorization.

118634031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393862 (or 4393856 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 118634031 is about 10891.9250364662. The cubic root of 118634031 is about 491.3637298596.

The spelling of 118634031 in words is "one hundred eighteen million, six hundred thirty-four thousand, thirty-one".