136956720 has 160 divisors (see below), whose sum is σ = 454113792. Its totient is φ = 34062336.

The previous prime is 136956719. The next prime is 136956733. The reversal of 136956720 is 27659631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237072 + ... + 237648.

Almost surely, 2^136956720 is an apocalyptic number.

136956720 is a gapful number since it is divisible by the number (10) 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 136956720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227056896).

136956720 is an abundant number, since it is smaller than the sum of its proper divisors (317157072).

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

136956720 is a wasteful number, since it uses less digits than its factorization.

136956720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 136956720 is about 11702.8509347082. The cubic root of 136956720 is about 515.4593821079.

The spelling of 136956720 in words is "one hundred thirty-six million, nine hundred fifty-six thousand, seven hundred twenty".