137471999 has 16 divisors (see below), whose sum is σ = 161832000. Its totient is φ = 116720352.

The previous prime is 137471963. The next prime is 137472001. The reversal of 137471999 is 999174731.

It is a happy number.

It is not a de Polignac number, because 137471999 - 2⁸ = 137471743 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 (137471959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35549 + ... + 39225.

It is an arithmetic number, because the mean of its divisors is an integer number (10114500).

Almost surely, 2^137471999 is an apocalyptic number.

137471999 is a deficient number, since it is larger than the sum of its proper divisors (24360001).

137471999 is an equidigital number, since it uses as much as digits as its factorization.

137471999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807 (or 3793 counting only the distinct ones).

The product of its digits is 428652, while the sum is 50.

The square root of 137471999 is about 11724.8453721147. The cubic root of 137471999 is about 516.1050191369.

The spelling of 137471999 in words is "one hundred thirty-seven million, four hundred seventy-one thousand, nine hundred ninety-nine".