137961560 has 32 divisors (see below), whose sum is σ = 338634000. Its totient is φ = 50167680.

The previous prime is 137961559. The next prime is 137961589. The reversal of 137961560 is 65169731.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 156335 + ... + 157214.

Almost surely, 2^137961560 is an apocalyptic number.

137961560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137961560 is an abundant number, since it is smaller than the sum of its proper divisors (200672440).

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

137961560 is a wasteful number, since it uses less digits than its factorization.

137961560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313571 (or 313567 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 137961560 is about 11745.7038954675. The cubic root of 137961560 is about 516.7169390324.

The spelling of 137961560 in words is "one hundred thirty-seven million, nine hundred sixty-one thousand, five hundred sixty".