136553644 has 12 divisors (see below), whose sum is σ = 239134000. Its totient is φ = 68229648.

The previous prime is 136553623. The next prime is 136553647. The reversal of 136553644 is 446355631.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (136553647) by changing a digit.

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, 4824 + ... + 17215.

Almost surely, 2^136553644 is an apocalyptic number.

It is an amenable number.

136553644 is a deficient number, since it is larger than the sum of its proper divisors (102580356).

136553644 is a wasteful number, since it uses less digits than its factorization.

136553644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592 (or 23590 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 136553644 is about 11685.6169713028. The cubic root of 136553644 is about 514.9532040302.

The spelling of 136553644 in words is "one hundred thirty-six million, five hundred fifty-three thousand, six hundred forty-four".