136405413 has 12 divisors (see below), whose sum is σ = 199806048. Its totient is φ = 89655720.

The previous prime is 136405403. The next prime is 136405439. The reversal of 136405413 is 314504631.

136405413 is a `hidden beast` number, since 1 + 3 + 640 + 5 + 4 + 13 = 666.

It is not a de Polignac number, because 136405413 - 2⁶ = 136405349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136405403) 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, 106095 + ... + 107372.

It is an arithmetic number, because the mean of its divisors is an integer number (16650504).

Almost surely, 2^136405413 is an apocalyptic number.

It is an amenable number.

136405413 is a deficient number, since it is larger than the sum of its proper divisors (63400635).

136405413 is a wasteful number, since it uses less digits than its factorization.

136405413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213544 (or 213541 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 136405413 is about 11679.2727941426. The cubic root of 136405413 is about 514.7668067955.

The spelling of 136405413 in words is "one hundred thirty-six million, four hundred five thousand, four hundred thirteen".