136615401 has 12 divisors (see below), whose sum is σ = 212513028. Its totient is φ = 84070944.

The previous prime is 136615393. The next prime is 136615459. The reversal of 136615401 is 104516631.

136615401 is a `hidden beast` number, since 1 + 3 + 6 + 615 + 40 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22553001 + 114062400 = 4749^2 + 10680^2 .

It is not a de Polignac number, because 136615401 - 2³ = 136615393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136615471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583710 + ... + 583943.

It is an arithmetic number, because the mean of its divisors is an integer number (17709419).

Almost surely, 2^136615401 is an apocalyptic number.

It is an amenable number.

136615401 is a deficient number, since it is larger than the sum of its proper divisors (75897627).

136615401 is a wasteful number, since it uses less digits than its factorization.

136615401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167672 (or 1167669 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 136615401 is about 11688.2591090376. The cubic root of 136615401 is about 515.0308222983.

The spelling of 136615401 in words is "one hundred thirty-six million, six hundred fifteen thousand, four hundred one".