137203138 has 8 divisors (see below), whose sum is σ = 210824460. Its totient is φ = 66928320.

The previous prime is 137203133. The next prime is 137203139. The reversal of 137203138 is 831302731.

137203138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 136492489 + 710649 = 11683^2 + 843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (137203133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836523 + ... + 836686.

Almost surely, 2^137203138 is an apocalyptic number.

137203138 is a deficient number, since it is larger than the sum of its proper divisors (73621322).

137203138 is a wasteful number, since it uses less digits than its factorization.

137203138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673252.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 137203138 is about 11713.3743216889. The cubic root of 137203138 is about 515.7683419194.

Adding to 137203138 its reverse (831302731), we get a palindrome (968505869).

The spelling of 137203138 in words is "one hundred thirty-seven million, two hundred three thousand, one hundred thirty-eight".