137891190 has 16 divisors (see below), whose sum is σ = 330938928. Its totient is φ = 36770976.

The previous prime is 137891183. The next prime is 137891203. The reversal of 137891190 is 91198731.

It is a super-2 number, since 2×137891190² = 38027960559232200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298157 + ... + 2298216.

It is an arithmetic number, because the mean of its divisors is an integer number (20683683).

Almost surely, 2^137891190 is an apocalyptic number.

137891190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137891190 is an abundant number, since it is smaller than the sum of its proper divisors (193047738).

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

137891190 is a wasteful number, since it uses less digits than its factorization.

137891190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596383.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 137891190 is about 11742.7079500429. The cubic root of 137891190 is about 516.6290702207.

The spelling of 137891190 in words is "one hundred thirty-seven million, eight hundred ninety-one thousand, one hundred ninety".