136531744 has 12 divisors (see below), whose sum is σ = 268796934. Its totient is φ = 68265856.

The previous prime is 136531741. The next prime is 136531783. The reversal of 136531744 is 447135631.

It can be written as a sum of positive squares in only one way, i.e., 134281744 + 2250000 = 11588^2 + 1500^2 .

It is a hoax number, since the sum of its digits (34) 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 (136531741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133277 + ... + 2133340.

Almost surely, 2^136531744 is an apocalyptic number.

It is an amenable number.

136531744 is a deficient number, since it is larger than the sum of its proper divisors (132265190).

136531744 is an equidigital number, since it uses as much as digits as its factorization.

136531744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266627 (or 4266619 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 136531744 is about 11684.6798843614. The cubic root of 136531744 is about 514.9256737553.

The spelling of 136531744 in words is "one hundred thirty-six million, five hundred thirty-one thousand, seven hundred forty-four".