118849431 has 16 divisors (see below), whose sum is σ = 168009984. Its totient is φ = 74473344.

The previous prime is 118849421. The next prime is 118849433. The reversal of 118849431 is 134948811.

It is not a de Polignac number, because 118849431 - 2⁵ = 118849399 is a prime.

It is a super-2 number, since 2×118849431² = 28250374498047522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118849431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118849433) 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, 65766 + ... + 67548.

It is an arithmetic number, because the mean of its divisors is an integer number (10500624).

Almost surely, 2^118849431 is an apocalyptic number.

118849431 is a deficient number, since it is larger than the sum of its proper divisors (49160553).

118849431 is a wasteful number, since it uses less digits than its factorization.

118849431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110.

The product of its digits is 27648, while the sum is 39.

The square root of 118849431 is about 10901.8086114186. The cubic root of 118849431 is about 491.6609345050.

The spelling of 118849431 in words is "one hundred eighteen million, eight hundred forty-nine thousand, four hundred thirty-one".