136553408 has 14 divisors (see below), whose sum is σ = 270973296. Its totient is φ = 68276672.

The previous prime is 136553407. The next prime is 136553447. The reversal of 136553408 is 804355631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136553407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066760 + ... + 1066887.

Almost surely, 2^136553408 is an apocalyptic number.

It is an amenable number.

136553408 is a deficient number, since it is larger than the sum of its proper divisors (134419888).

136553408 is an equidigital number, since it uses as much as digits as its factorization.

136553408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133659 (or 2133649 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 136553408 is about 11685.6068734148. The cubic root of 136553408 is about 514.9529073727.

The spelling of 136553408 in words is "one hundred thirty-six million, five hundred fifty-three thousand, four hundred eight".