136431812 has 24 divisors (see below), whose sum is σ = 262859520. Its totient is φ = 61443360.

The previous prime is 136431809. The next prime is 136431821. The reversal of 136431812 is 218134631.

It is a super-2 number, since 2×136431812² = 37227278651206688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9428 + ... + 19019.

It is an arithmetic number, because the mean of its divisors is an integer number (10952480).

Almost surely, 2^136431812 is an apocalyptic number.

It is an amenable number.

136431812 is a deficient number, since it is larger than the sum of its proper divisors (126427708).

136431812 is a wasteful number, since it uses less digits than its factorization.

136431812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28571 (or 28569 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 136431812 is about 11680.4029040098. The cubic root of 136431812 is about 514.8000128393.

The spelling of 136431812 in words is "one hundred thirty-six million, four hundred thirty-one thousand, eight hundred twelve".