136557312 has 72 divisors (see below), whose sum is σ = 365344560. Its totient is φ = 45281280.

The previous prime is 136557307. The next prime is 136557331. The reversal of 136557312 is 213755631.

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, 206262 + ... + 206922.

It is an arithmetic number, because the mean of its divisors is an integer number (5074230).

Almost surely, 2^136557312 is an apocalyptic number.

136557312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136557312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182672280).

136557312 is an abundant number, since it is smaller than the sum of its proper divisors (228787248).

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

136557312 is an equidigital number, since it uses as much as digits as its factorization.

136557312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 935 counting only the distinct ones).

The product of its digits is 18900, while the sum is 33.

The square root of 136557312 is about 11685.7739153211. The cubic root of 136557312 is about 514.9578147492.

The spelling of 136557312 in words is "one hundred thirty-six million, five hundred fifty-seven thousand, three hundred twelve".