136440650 has 48 divisors (see below), whose sum is σ = 266333400. Its totient is φ = 51932160.

The previous prime is 136440637. The next prime is 136440683. The reversal of 136440650 is 56044631.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 27426169 + 109014481 = 5237^2 + 10441^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105206 + ... + 106494.

Almost surely, 2^136440650 is an apocalyptic number.

136440650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136440650 is a deficient number, since it is larger than the sum of its proper divisors (129892750).

136440650 is a wasteful number, since it uses less digits than its factorization.

136440650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 136440650 is about 11680.7812238737. The cubic root of 136440650 is about 514.8111287812.

The spelling of 136440650 in words is "one hundred thirty-six million, four hundred forty thousand, six hundred fifty".