137928918 has 16 divisors (see below), whose sum is σ = 275973120. Its totient is φ = 45957096.

The previous prime is 137928913. The next prime is 137928937. The reversal of 137928918 is 819829731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137928913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24571 + ... + 29657.

It is an arithmetic number, because the mean of its divisors is an integer number (17248320).

Almost surely, 2^137928918 is an apocalyptic number.

137928918 is an abundant number, since it is smaller than the sum of its proper divisors (138044202).

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

137928918 is a wasteful number, since it uses less digits than its factorization.

137928918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9611.

The product of its digits is 217728, while the sum is 48.

The square root of 137928918 is about 11744.3142839418. The cubic root of 137928918 is about 516.6761837072.

The spelling of 137928918 in words is "one hundred thirty-seven million, nine hundred twenty-eight thousand, nine hundred eighteen".