136255938 has 64 divisors (see below), whose sum is σ = 337677312. Its totient is φ = 35691840.

The previous prime is 136255927. The next prime is 136255963. The reversal of 136255938 is 839552631.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 136255938.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88233 + ... + 89763.

It is an arithmetic number, because the mean of its divisors is an integer number (5276208).

Almost surely, 2^136255938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136255938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168838656).

136255938 is an abundant number, since it is smaller than the sum of its proper divisors (201421374).

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

136255938 is a wasteful number, since it uses less digits than its factorization.

136255938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 194400, while the sum is 42.

The square root of 136255938 is about 11672.8718831314. The cubic root of 136255938 is about 514.5787084652.

The spelling of 136255938 in words is "one hundred thirty-six million, two hundred fifty-five thousand, nine hundred thirty-eight".