137858242 has 16 divisors (see below), whose sum is σ = 208432512. Its totient is φ = 68383440.

The previous prime is 137858221. The next prime is 137858249. The reversal of 137858242 is 242858731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 137858195 and 137858204.

It is not an unprimeable number, because it can be changed into a prime (137858249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187708 + ... + 188440.

It is an arithmetic number, because the mean of its divisors is an integer number (13027032).

Almost surely, 2^137858242 is an apocalyptic number.

137858242 is a deficient number, since it is larger than the sum of its proper divisors (70574270).

137858242 is a wasteful number, since it uses less digits than its factorization.

137858242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its digits is 107520, while the sum is 40.

The square root of 137858242 is about 11741.3049530280. The cubic root of 137858242 is about 516.5879188110.

The spelling of 137858242 in words is "one hundred thirty-seven million, eight hundred fifty-eight thousand, two hundred forty-two".