137816887 has 8 divisors (see below), whose sum is σ = 148572704. Its totient is φ = 127083168.

The previous prime is 137816881. The next prime is 137816891. The reversal of 137816887 is 788618731.

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

It is a cyclic number.

It is not a de Polignac number, because 137816887 - 2³ = 137816879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137816887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137816881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8833 + ... + 18805.

It is an arithmetic number, because the mean of its divisors is an integer number (18571588).

Almost surely, 2^137816887 is an apocalyptic number.

137816887 is a deficient number, since it is larger than the sum of its proper divisors (10755817).

137816887 is a wasteful number, since it uses less digits than its factorization.

137816887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11049.

The product of its digits is 451584, while the sum is 49.

The square root of 137816887 is about 11739.5437304863. The cubic root of 137816887 is about 516.5362579415.

The spelling of 137816887 in words is "one hundred thirty-seven million, eight hundred sixteen thousand, eight hundred eighty-seven".