118261224 has 24 divisors (see below), whose sum is σ = 320291010. Its totient is φ = 39420384.

The previous prime is 118261207. The next prime is 118261229. The reversal of 118261224 is 422162811.

It can be written as a sum of positive squares in only one way, i.e., 117029124 + 1232100 = 10818^2 + 1110^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (118261229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821187 + ... + 821330.

Almost surely, 2^118261224 is an apocalyptic number.

It is an amenable number.

118261224 is an abundant number, since it is smaller than the sum of its proper divisors (202029786).

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

118261224 is a wasteful number, since it uses less digits than its factorization.

118261224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642529 (or 1642522 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 118261224 is about 10874.7976532899. The cubic root of 118261224 is about 490.8484868695.

The spelling of 118261224 in words is "one hundred eighteen million, two hundred sixty-one thousand, two hundred twenty-four".