118731492 has 108 divisors (see below), whose sum is σ = 334478508. Its totient is φ = 35481600.

The previous prime is 118731469. The next prime is 118731527. The reversal of 118731492 is 294137811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66977856 + 51753636 = 8184^2 + 7194^2 .

It is a super-3 number, since 3×118731492³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 422392 + ... + 422672.

Almost surely, 2^118731492 is an apocalyptic number.

118731492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118731492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167239254).

118731492 is an abundant number, since it is smaller than the sum of its proper divisors (215747016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118731492 is a wasteful number, since it uses less digits than its factorization.

118731492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 394 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 118731492 is about 10896.3981204800. The cubic root of 118731492 is about 491.4982491373.

The spelling of 118731492 in words is "one hundred eighteen million, seven hundred thirty-one thousand, four hundred ninety-two".