136500399 has 12 divisors (see below), whose sum is σ = 225334096. Its totient is φ = 78000192.

The previous prime is 136500391. The next prime is 136500401. The reversal of 136500399 is 993005631.

It is not a de Polignac number, because 136500399 - 2³ = 136500391 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 (136500391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083274 + ... + 1083399.

Almost surely, 2^136500399 is an apocalyptic number.

136500399 is a deficient number, since it is larger than the sum of its proper divisors (88833697).

136500399 is a wasteful number, since it uses less digits than its factorization.

136500399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166686 (or 2166683 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 136500399 is about 11683.3385211591. The cubic root of 136500399 is about 514.8862651408.

The spelling of 136500399 in words is "one hundred thirty-six million, five hundred thousand, three hundred ninety-nine".