137938423 has 16 divisors (see below), whose sum is σ = 166282240. Its totient is φ = 111780000.

The previous prime is 137938421. The next prime is 137938441. The reversal of 137938423 is 324839731.

It is a cyclic number.

It is not a de Polignac number, because 137938423 - 2¹ = 137938421 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 (137938421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99193 + ... + 100573.

It is an arithmetic number, because the mean of its divisors is an integer number (10392640).

Almost surely, 2^137938423 is an apocalyptic number.

137938423 is a deficient number, since it is larger than the sum of its proper divisors (28343817).

137938423 is a wasteful number, since it uses less digits than its factorization.

137938423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158.

The product of its digits is 108864, while the sum is 40.

The square root of 137938423 is about 11744.7189408687. The cubic root of 137938423 is about 516.6880518839.

The spelling of 137938423 in words is "one hundred thirty-seven million, nine hundred thirty-eight thousand, four hundred twenty-three".