136437320 has 16 divisors (see below), whose sum is σ = 306984060. Its totient is φ = 54574912.

The previous prime is 136437313. The next prime is 136437331. The reversal of 136437320 is 23734631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 129914404 + 6522916 = 11398^2 + 2554^2 .

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 3 ways as a sum of consecutive naturals, for example, 1705427 + ... + 1705506.

Almost surely, 2^136437320 is an apocalyptic number.

136437320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136437320 is an abundant number, since it is smaller than the sum of its proper divisors (170546740).

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

136437320 is a wasteful number, since it uses less digits than its factorization.

136437320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410944 (or 3410940 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 136437320 is about 11680.6386811681. The cubic root of 136437320 is about 514.8069405499.

It can be divided in two parts, 136437 and 320, that multiplied together give a triangular number (43659840 = T₉₃₄₄).

The spelling of 136437320 in words is "one hundred thirty-six million, four hundred thirty-seven thousand, three hundred twenty".