136400506 has 32 divisors (see below), whose sum is σ = 236390400. Its totient is φ = 58376880.

The previous prime is 136400477. The next prime is 136400513. The reversal of 136400506 is 605004631.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73911 + ... + 75733.

It is an arithmetic number, because the mean of its divisors is an integer number (7387200).

Almost surely, 2^136400506 is an apocalyptic number.

136400506 is a deficient number, since it is larger than the sum of its proper divisors (99989894).

136400506 is a wasteful number, since it uses less digits than its factorization.

136400506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 136400506 is about 11679.0627192425. The cubic root of 136400506 is about 514.7606340419.

The spelling of 136400506 in words is "one hundred thirty-six million, four hundred thousand, five hundred six".