136436144 has 20 divisors (see below), whose sum is σ = 284679696. Its totient is φ = 62970432.

The previous prime is 136436141. The next prime is 136436149. The reversal of 136436144 is 441634631.

It is a super-2 number, since 2×136436144² = 37229642779177472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136436144.

It is not an unprimeable number, because it can be changed into a prime (136436141) 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, 327764 + ... + 328179.

Almost surely, 2^136436144 is an apocalyptic number.

It is an amenable number.

136436144 is an abundant number, since it is smaller than the sum of its proper divisors (148243552).

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

136436144 is a wasteful number, since it uses less digits than its factorization.

136436144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655964 (or 655958 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 136436144 is about 11680.5883413465. The cubic root of 136436144 is about 514.8054614465.

The spelling of 136436144 in words is "one hundred thirty-six million, four hundred thirty-six thousand, one hundred forty-four".