137916238 has 4 divisors (see below), whose sum is σ = 206874360. Its totient is φ = 68958118.

The previous prime is 137916221. The next prime is 137916253. The reversal of 137916238 is 832619731.

137916238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832619731 = 31 ⋅26858701.

It is a self number, because there is not a number n which added to its sum of digits gives 137916238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34479058 + ... + 34479061.

It is an arithmetic number, because the mean of its divisors is an integer number (51718590).

Almost surely, 2^137916238 is an apocalyptic number.

137916238 is a deficient number, since it is larger than the sum of its proper divisors (68958122).

137916238 is an equidigital number, since it uses as much as digits as its factorization.

137916238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68958121.

The product of its digits is 54432, while the sum is 40.

The square root of 137916238 is about 11743.7744358447. The cubic root of 137916238 is about 516.6603502985.

The spelling of 137916238 in words is "one hundred thirty-seven million, nine hundred sixteen thousand, two hundred thirty-eight".