137197944 has 96 divisors (see below), whose sum is σ = 417624480. Its totient is φ = 40372992.

The previous prime is 137197919. The next prime is 137197981. The reversal of 137197944 is 449791731.

137197944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 137197944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18342 + ... + 24714.

It is an arithmetic number, because the mean of its divisors is an integer number (4350255).

Almost surely, 2^137197944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137197944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208812240).

137197944 is an abundant number, since it is smaller than the sum of its proper divisors (280426536).

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

137197944 is a wasteful number, since it uses less digits than its factorization.

137197944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421 (or 6414 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 137197944 is about 11713.1526072189. The cubic root of 137197944 is about 515.7618334809.

The spelling of 137197944 in words is "one hundred thirty-seven million, one hundred ninety-seven thousand, nine hundred forty-four".