137838123 has 6 divisors (see below), whose sum is σ = 199099524. Its totient is φ = 91892076.

The previous prime is 137838119. The next prime is 137838137. The reversal of 137838123 is 321838731.

It is not a de Polignac number, because 137838123 - 2² = 137838119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137838163) 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, 7657665 + ... + 7657682.

It is an arithmetic number, because the mean of its divisors is an integer number (33183254).

Almost surely, 2^137838123 is an apocalyptic number.

137838123 is a deficient number, since it is larger than the sum of its proper divisors (61261401).

137838123 is a wasteful number, since it uses less digits than its factorization.

137838123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15315353 (or 15315350 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 137838123 is about 11740.4481601002. The cubic root of 137838123 is about 516.5627873479.

The spelling of 137838123 in words is "one hundred thirty-seven million, eight hundred thirty-eight thousand, one hundred twenty-three".