136431312 has 40 divisors (see below), whose sum is σ = 364604640. Its totient is φ = 43908480.

The previous prime is 136431293. The next prime is 136431353. The reversal of 136431312 is 213134631.

It is a happy number.

It is a super-2 number, since 2×136431312² = 37227005788082688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 47614 + ... + 50397.

It is an arithmetic number, because the mean of its divisors is an integer number (9115116).

Almost surely, 2^136431312 is an apocalyptic number.

136431312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136431312 is an abundant number, since it is smaller than the sum of its proper divisors (228173328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136431312 is a wasteful number, since it uses less digits than its factorization.

136431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98051 (or 98045 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 136431312 is about 11680.3815006189. The cubic root of 136431312 is about 514.7993839530.

Adding to 136431312 its reverse (213134631), we get a palindrome (349565943).

The spelling of 136431312 in words is "one hundred thirty-six million, four hundred thirty-one thousand, three hundred twelve".