137715942 has 64 divisors (see below), whose sum is σ = 345461760. Its totient is φ = 35627904.

The previous prime is 137715923. The next prime is 137715943. The reversal of 137715942 is 249517731.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 137715942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137715943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26559 + ... + 31317.

It is an arithmetic number, because the mean of its divisors is an integer number (5397840).

Almost surely, 2^137715942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137715942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172730880).

137715942 is an abundant number, since it is smaller than the sum of its proper divisors (207745818).

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

137715942 is a wasteful number, since it uses less digits than its factorization.

137715942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837.

The product of its digits is 52920, while the sum is 39.

The square root of 137715942 is about 11735.2435850305. The cubic root of 137715942 is about 516.4101135350.

The spelling of 137715942 in words is "one hundred thirty-seven million, seven hundred fifteen thousand, nine hundred forty-two".