118133530 has 16 divisors (see below), whose sum is σ = 219973320. Its totient is φ = 45623872.

The previous prime is 118133503. The next prime is 118133531. The reversal of 118133530 is 35331811.

It can be written as a sum of positive squares in 4 ways, for example, as 67453369 + 50680161 = 8213^2 + 7119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118133495 and 118133504.

It is not an unprimeable number, because it can be changed into a prime (118133531) 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, 203389 + ... + 203968.

Almost surely, 2^118133530 is an apocalyptic number.

118133530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118133530 is a deficient number, since it is larger than the sum of its proper divisors (101839790).

118133530 is a wasteful number, since it uses less digits than its factorization.

118133530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407393.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 118133530 is about 10868.9249698395. The cubic root of 118133530 is about 490.6717566972.

The spelling of 118133530 in words is "one hundred eighteen million, one hundred thirty-three thousand, five hundred thirty".