136883994 has 64 divisors (see below), whose sum is σ = 315318528. Its totient is φ = 39283200.

The previous prime is 136883993. The next prime is 136884023. The reversal of 136883994 is 499388631.

It is not an unprimeable number, because it can be changed into a prime (136883993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72624 + ... + 74484.

It is an arithmetic number, because the mean of its divisors is an integer number (4926852).

Almost surely, 2^136883994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136883994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157659264).

136883994 is an abundant number, since it is smaller than the sum of its proper divisors (178434534).

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

136883994 is a wasteful number, since it uses less digits than its factorization.

136883994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943.

The product of its digits is 1119744, while the sum is 51.

The square root of 136883994 is about 11699.7433305180. The cubic root of 136883994 is about 515.3681271567.

The spelling of 136883994 in words is "one hundred thirty-six million, eight hundred eighty-three thousand, nine hundred ninety-four".