137908542 has 16 divisors (see below), whose sum is σ = 275942160. Its totient is φ = 45948672.

The previous prime is 137908541. The next prime is 137908549. The reversal of 137908542 is 245809731.

It is a self number, because there is not a number n which added to its sum of digits gives 137908542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137908541) 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, 15388 + ... + 22640.

It is an arithmetic number, because the mean of its divisors is an integer number (17246385).

Almost surely, 2^137908542 is an apocalyptic number.

137908542 is an abundant number, since it is smaller than the sum of its proper divisors (138033618).

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

137908542 is a wasteful number, since it uses less digits than its factorization.

137908542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 137908542 is about 11743.4467683044. The cubic root of 137908542 is about 516.6507398952.

The spelling of 137908542 in words is "one hundred thirty-seven million, nine hundred eight thousand, five hundred forty-two".