136975018 has 12 divisors (see below), whose sum is σ = 218260422. Its totient is φ = 64458560.

The previous prime is 136974997. The next prime is 136975021. The reversal of 136975018 is 810579631.

It can be written as a sum of positive squares in 3 ways, for example, as 121506529 + 15468489 = 11023^2 + 3933^2 .

It is a super-2 number, since 2×136975018² = 37524311112200648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117913 + ... + 119068.

Almost surely, 2^136975018 is an apocalyptic number.

136975018 is a deficient number, since it is larger than the sum of its proper divisors (81285404).

136975018 is a wasteful number, since it uses less digits than its factorization.

136975018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237017 (or 237000 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 136975018 is about 11703.6326839149. The cubic root of 136975018 is about 515.4823369406.

The spelling of 136975018 in words is "one hundred thirty-six million, nine hundred seventy-five thousand, eighteen".