137439042 has 16 divisors (see below), whose sum is σ = 296022720. Its totient is φ = 42288912.

The previous prime is 137439023. The next prime is 137439061. The reversal of 137439042 is 240934731.

It is an interprime number because it is at equal distance from previous prime (137439023) and next prime (137439061).

It is a junction number, because it is equal to n+sod(n) for n = 137438994 and 137439012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880942 + ... + 881097.

It is an arithmetic number, because the mean of its divisors is an integer number (18501420).

Almost surely, 2^137439042 is an apocalyptic number.

137439042 is an abundant number, since it is smaller than the sum of its proper divisors (158583678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137439042 is a wasteful number, since it uses less digits than its factorization.

137439042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762057.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 137439042 is about 11723.4398535583. The cubic root of 137439042 is about 516.0637728403.

The spelling of 137439042 in words is "one hundred thirty-seven million, four hundred thirty-nine thousand, forty-two".