137992239 has 48 divisors (see below), whose sum is σ = 250159104. Its totient is φ = 71208000.

The previous prime is 137992199. The next prime is 137992243. The reversal of 137992239 is 932299731.

It is a happy number.

It is not a de Polignac number, because 137992239 - 2⁸ = 137991983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137992194 and 137992203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137992139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119314 + ... + 120464.

It is an arithmetic number, because the mean of its divisors is an integer number (5211648).

Almost surely, 2^137992239 is an apocalyptic number.

137992239 is a deficient number, since it is larger than the sum of its proper divisors (112166865).

137992239 is a wasteful number, since it uses less digits than its factorization.

137992239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1345 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 137992239 is about 11747.0097897295. The cubic root of 137992239 is about 516.7552375847.

The spelling of 137992239 in words is "one hundred thirty-seven million, nine hundred ninety-two thousand, two hundred thirty-nine".