136744992 has 36 divisors (see below), whose sum is σ = 388869390. Its totient is φ = 45581568.

The previous prime is 136744943. The next prime is 136745023. The reversal of 136744992 is 299447631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 109746576 + 26998416 = 10476^2 + 5196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237117 + ... + 237692.

Almost surely, 2^136744992 is an apocalyptic number.

136744992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136744992 is an abundant number, since it is smaller than the sum of its proper divisors (252124398).

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

136744992 is a wasteful number, since it uses less digits than its factorization.

136744992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474825 (or 474814 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 136744992 is about 11693.8014349483. The cubic root of 136744992 is about 515.1936206018.

The spelling of 136744992 in words is "one hundred thirty-six million, seven hundred forty-four thousand, nine hundred ninety-two".