136844456 has 24 divisors (see below), whose sum is σ = 298475370. Its totient is φ = 58647456.

The previous prime is 136844437. The next prime is 136844459. The reversal of 136844456 is 654448631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136656100 + 188356 = 11690^2 + 434^2 .

It is not an unprimeable number, because it can be changed into a prime (136844459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174155 + ... + 174938.

Almost surely, 2^136844456 is an apocalyptic number.

It is an amenable number.

136844456 is an abundant number, since it is smaller than the sum of its proper divisors (161630914).

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

136844456 is a wasteful number, since it uses less digits than its factorization.

136844456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349113 (or 349102 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 136844456 is about 11698.0535132987. The cubic root of 136844456 is about 515.3185021991.

The spelling of 136844456 in words is "one hundred thirty-six million, eight hundred forty-four thousand, four hundred fifty-six".