137421342 has 12 divisors (see below), whose sum is σ = 297746280. Its totient is φ = 45807108.

The previous prime is 137421341. The next prime is 137421371. The reversal of 137421342 is 243124731.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137421341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3817242 + ... + 3817277.

It is an arithmetic number, because the mean of its divisors is an integer number (24812190).

Almost surely, 2^137421342 is an apocalyptic number.

137421342 is an abundant number, since it is smaller than the sum of its proper divisors (160324938).

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

137421342 is a wasteful number, since it uses less digits than its factorization.

137421342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634527 (or 7634524 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 137421342 is about 11722.6849313628. The cubic root of 137421342 is about 516.0416182404.

The spelling of 137421342 in words is "one hundred thirty-seven million, four hundred twenty-one thousand, three hundred forty-two".