136638850 has 24 divisors (see below), whose sum is σ = 254495988. Its totient is φ = 54580800.

The previous prime is 136638787. The next prime is 136638851. The reversal of 136638850 is 58836631.

136638850 is nontrivially palindromic in base 4.

136638850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 62110161 + 74528689 = 7881^2 + 8633^2 .

It is not an unprimeable number, because it can be changed into a prime (136638851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48480 + ... + 51220.

Almost surely, 2^136638850 is an apocalyptic number.

136638850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136638850 is a deficient number, since it is larger than the sum of its proper divisors (117857138).

136638850 is a wasteful number, since it uses less digits than its factorization.

136638850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 136638850 is about 11689.2621666211. The cubic root of 136638850 is about 515.0602876606.

The spelling of 136638850 in words is "one hundred thirty-six million, six hundred thirty-eight thousand, eight hundred fifty".