136511413 has 4 divisors (see below), whose sum is σ = 137197600. Its totient is φ = 135825228.

The previous prime is 136511407. The next prime is 136511423. The reversal of 136511413 is 314115631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136511413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136511423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342795 + ... + 343192.

It is an arithmetic number, because the mean of its divisors is an integer number (34299400).

Almost surely, 2^136511413 is an apocalyptic number.

It is an amenable number.

136511413 is a deficient number, since it is larger than the sum of its proper divisors (686187).

136511413 is an equidigital number, since it uses as much as digits as its factorization.

136511413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686186.

The product of its digits is 1080, while the sum is 25.

The square root of 136511413 is about 11683.8098666488. The cubic root of 136511413 is about 514.9001132195.

The spelling of 136511413 in words is "one hundred thirty-six million, five hundred eleven thousand, four hundred thirteen".