137994918 has 8 divisors (see below), whose sum is σ = 275989848. Its totient is φ = 45998304.

The previous prime is 137994907. The next prime is 137994931. The reversal of 137994918 is 819499731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

137994918 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11499571 + ... + 11499582.

It is an arithmetic number, because the mean of its divisors is an integer number (34498731).

Almost surely, 2^137994918 is an apocalyptic number.

137994918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

137994918 is a wasteful number, since it uses less digits than its factorization.

137994918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22999158.

The product of its digits is 489888, while the sum is 51.

The square root of 137994918 is about 11747.1238181948. The cubic root of 137994918 is about 516.7585816818.

The spelling of 137994918 in words is "one hundred thirty-seven million, nine hundred ninety-four thousand, nine hundred eighteen".