137702042 has 4 divisors (see below), whose sum is σ = 206553066. Its totient is φ = 68851020.

The previous prime is 137702029. The next prime is 137702053. The reversal of 137702042 is 240207731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240207731 = 10177 ⋅23603.

It can be written as a sum of positive squares in only one way, i.e., 118613881 + 19088161 = 10891^2 + 4369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34425509 + ... + 34425512.

Almost surely, 2^137702042 is an apocalyptic number.

137702042 is a deficient number, since it is larger than the sum of its proper divisors (68851024).

137702042 is an equidigital number, since it uses as much as digits as its factorization.

137702042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68851023.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 137702042 is about 11734.6513369593. The cubic root of 137702042 is about 516.3927387803.

Adding to 137702042 its reverse (240207731), we get a palindrome (377909773).

The spelling of 137702042 in words is "one hundred thirty-seven million, seven hundred two thousand, forty-two".