137625918 has 8 divisors (see below), whose sum is σ = 275251848. Its totient is φ = 45875304.

The previous prime is 137625883. The next prime is 137625941. The reversal of 137625918 is 819526731.

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

137625918 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 137625918.

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, 11468821 + ... + 11468832.

It is an arithmetic number, because the mean of its divisors is an integer number (34406481).

Almost surely, 2^137625918 is an apocalyptic number.

137625918 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.

137625918 is a wasteful number, since it uses less digits than its factorization.

137625918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22937658.

The product of its digits is 90720, while the sum is 42.

The square root of 137625918 is about 11731.4073324559. The cubic root of 137625918 is about 516.2975643825.

The spelling of 137625918 in words is "one hundred thirty-seven million, six hundred twenty-five thousand, nine hundred eighteen".