137912999 has 6 divisors (see below), whose sum is σ = 160429464. Its totient is φ = 118211100.

The previous prime is 137912977. The next prime is 137913011. The reversal of 137912999 is 999219731.

It is not a de Polignac number, because 137912999 - 2²⁴ = 121135783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137912909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1407227 + ... + 1407324.

It is an arithmetic number, because the mean of its divisors is an integer number (26738244).

Almost surely, 2^137912999 is an apocalyptic number.

137912999 is a deficient number, since it is larger than the sum of its proper divisors (22516465).

137912999 is an equidigital number, since it uses as much as digits as its factorization.

137912999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814565 (or 2814558 counting only the distinct ones).

The product of its digits is 275562, while the sum is 50.

The square root of 137912999 is about 11743.6365321820. The cubic root of 137912999 is about 516.6563056311.

The spelling of 137912999 in words is "one hundred thirty-seven million, nine hundred twelve thousand, nine hundred ninety-nine".