136427499 has 48 divisors (see below), whose sum is σ = 227066112. Its totient is φ = 78188544.

The previous prime is 136427491. The next prime is 136427503. The reversal of 136427499 is 994724631.

It is a happy number.

136427499 is a `hidden beast` number, since 136 + 4 + 27 + 499 = 666.

It is not a de Polignac number, because 136427499 - 2³ = 136427491 is a prime.

It is a super-2 number, since 2×136427499² = 37224924966790002, which contains 22 as substring.

Its product of digits (326592) is a multiple of the sum of its prime factors (756).

It is not an unprimeable number, because it can be changed into a prime (136427491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224454 + ... + 225060.

It is an arithmetic number, because the mean of its divisors is an integer number (4730544).

Almost surely, 2^136427499 is an apocalyptic number.

136427499 is a deficient number, since it is larger than the sum of its proper divisors (90638613).

136427499 is a wasteful number, since it uses less digits than its factorization.

136427499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 753 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 136427499 is about 11680.2182770700. The cubic root of 136427499 is about 514.7945880150.

The spelling of 136427499 in words is "one hundred thirty-six million, four hundred twenty-seven thousand, four hundred ninety-nine".