136474731 has 12 divisors (see below), whose sum is σ = 197276352. Its totient is φ = 90915696.

The previous prime is 136474727. The next prime is 136474757. The reversal of 136474731 is 137474631.

136474731 is a `hidden beast` number, since 1 + 3 + 647 + 4 + 7 + 3 + 1 = 666.

It is not a de Polignac number, because 136474731 - 2² = 136474727 is a prime.

It is a super-2 number, since 2×136474731² = 37250704403044722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136474721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9265 + ... + 18941.

It is an arithmetic number, because the mean of its divisors is an integer number (16439696).

Almost surely, 2^136474731 is an apocalyptic number.

136474731 is a deficient number, since it is larger than the sum of its proper divisors (60801621).

136474731 is a wasteful number, since it uses less digits than its factorization.

136474731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250 (or 11247 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 136474731 is about 11682.2399821267. The cubic root of 136474731 is about 514.8539894620.

The spelling of 136474731 in words is "one hundred thirty-six million, four hundred seventy-four thousand, seven hundred thirty-one".