137638194 has 8 divisors (see below), whose sum is σ = 275276400. Its totient is φ = 45879396.

The previous prime is 137638183. The next prime is 137638199. The reversal of 137638194 is 491836731.

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

137638194 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (137638199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11469844 + ... + 11469855.

It is an arithmetic number, because the mean of its divisors is an integer number (34409550).

Almost surely, 2^137638194 is an apocalyptic number.

137638194 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.

137638194 is a wasteful number, since it uses less digits than its factorization.

137638194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22939704.

The product of its digits is 108864, while the sum is 42.

The square root of 137638194 is about 11731.9305316730. The cubic root of 137638194 is about 516.3129148837.

The spelling of 137638194 in words is "one hundred thirty-seven million, six hundred thirty-eight thousand, one hundred ninety-four".