136557744 has 20 divisors (see below), whose sum is σ = 352774296. Its totient is φ = 45519232.

The previous prime is 136557727. The next prime is 136557763. The reversal of 136557744 is 447755631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 136557696 and 136557705.

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, 1422429 + ... + 1422524.

Almost surely, 2^136557744 is an apocalyptic number.

It is an amenable number.

136557744 is an abundant number, since it is smaller than the sum of its proper divisors (216216552).

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

136557744 is a wasteful number, since it uses less digits than its factorization.

136557744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844964 (or 2844958 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 136557744 is about 11685.7923993198. The cubic root of 136557744 is about 514.9583577729.

The spelling of 136557744 in words is "one hundred thirty-six million, five hundred fifty-seven thousand, seven hundred forty-four".