137242746 has 12 divisors (see below), whose sum is σ = 297359322. Its totient is φ = 45747576.

The previous prime is 137242727. The next prime is 137242747. The reversal of 137242746 is 647242731.

It can be written as a sum of positive squares in only one way, i.e., 137241225 + 1521 = 11715^2 + 39^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 137242746.

It is not an unprimeable number, because it can be changed into a prime (137242747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3812281 + ... + 3812316.

Almost surely, 2^137242746 is an apocalyptic number.

137242746 is an abundant number, since it is smaller than the sum of its proper divisors (160116576).

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

137242746 is a wasteful number, since it uses less digits than its factorization.

137242746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624605 (or 7624602 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 137242746 is about 11715.0649165935. The cubic root of 137242746 is about 515.8179680609.

The spelling of 137242746 in words is "one hundred thirty-seven million, two hundred forty-two thousand, seven hundred forty-six".