136263644 has 48 divisors (see below), whose sum is σ = 266063616. Its totient is φ = 60547200.

The previous prime is 136263643. The next prime is 136263679. The reversal of 136263644 is 446362631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136263641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484784 + ... + 485064.

It is an arithmetic number, because the mean of its divisors is an integer number (5542992).

Almost surely, 2^136263644 is an apocalyptic number.

It is an amenable number.

136263644 is a deficient number, since it is larger than the sum of its proper divisors (129799972).

136263644 is a wasteful number, since it uses less digits than its factorization.

136263644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 136263644 is about 11673.2019600451. The cubic root of 136263644 is about 514.5884090058.

The spelling of 136263644 in words is "one hundred thirty-six million, two hundred sixty-three thousand, six hundred forty-four".