137715861 has 16 divisors (see below), whose sum is σ = 194660928. Its totient is φ = 86304000.

The previous prime is 137715859. The next prime is 137715883. The reversal of 137715861 is 168517731.

It is not a de Polignac number, because 137715861 - 2¹ = 137715859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137715821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73071 + ... + 74931.

It is an arithmetic number, because the mean of its divisors is an integer number (12166308).

Almost surely, 2^137715861 is an apocalyptic number.

It is an amenable number.

137715861 is a deficient number, since it is larger than the sum of its proper divisors (56945067).

137715861 is a wasteful number, since it uses less digits than its factorization.

137715861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332.

The product of its digits is 35280, while the sum is 39.

The square root of 137715861 is about 11735.2401338873. The cubic root of 137715861 is about 516.4100122898.

The spelling of 137715861 in words is "one hundred thirty-seven million, seven hundred fifteen thousand, eight hundred sixty-one".