136516431 has 16 divisors (see below), whose sum is σ = 190335744. Its totient is φ = 86870784.

The previous prime is 136516417. The next prime is 136516433. The reversal of 136516431 is 134615631.

It is not a de Polignac number, because 136516431 - 2⁵ = 136516399 is a prime.

It is a super-2 number, since 2×136516431² = 37273471865955522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136516433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35935 + ... + 39551.

It is an arithmetic number, because the mean of its divisors is an integer number (11895984).

Almost surely, 2^136516431 is an apocalyptic number.

136516431 is a deficient number, since it is larger than the sum of its proper divisors (53819313).

136516431 is a wasteful number, since it uses less digits than its factorization.

136516431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190.

The product of its digits is 6480, while the sum is 30.

The square root of 136516431 is about 11684.0246062733. The cubic root of 136516431 is about 514.9064221844.

The spelling of 136516431 in words is "one hundred thirty-six million, five hundred sixteen thousand, four hundred thirty-one".