137391168 has 28 divisors (see below), whose sum is σ = 363514640. Its totient is φ = 45796992.

The previous prime is 137391143. The next prime is 137391181. The reversal of 137391168 is 861193731.

It is a super-3 number, since 3×137391168³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 357598 + ... + 357981.

Almost surely, 2^137391168 is an apocalyptic number.

It is an amenable number.

137391168 is an abundant number, since it is smaller than the sum of its proper divisors (226123472).

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

137391168 is an equidigital number, since it uses as much as digits as its factorization.

137391168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715594 (or 715584 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 137391168 is about 11721.3978688551. The cubic root of 137391168 is about 516.0038458941.

The spelling of 137391168 in words is "one hundred thirty-seven million, three hundred ninety-one thousand, one hundred sixty-eight".