137947542 has 16 divisors (see below), whose sum is σ = 276523200. Its totient is φ = 45877832.

The previous prime is 137947531. The next prime is 137947549. The reversal of 137947542 is 245749731.

It is a junction number, because it is equal to n+sod(n) for n = 137947494 and 137947503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137947549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23292 + ... + 28607.

It is an arithmetic number, because the mean of its divisors is an integer number (17282700).

Almost surely, 2^137947542 is an apocalyptic number.

137947542 is an abundant number, since it is smaller than the sum of its proper divisors (138575658).

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

137947542 is a wasteful number, since it uses less digits than its factorization.

137947542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52347.

The product of its digits is 211680, while the sum is 42.

The square root of 137947542 is about 11745.1071514908. The cubic root of 137947542 is about 516.6994375791.

The spelling of 137947542 in words is "one hundred thirty-seven million, nine hundred forty-seven thousand, five hundred forty-two".