137493747 has 64 divisors (see below), whose sum is σ = 229785600. Its totient is φ = 80831520.

The previous prime is 137493737. The next prime is 137493749. The reversal of 137493747 is 747394731.

It is not a de Polignac number, because 137493747 - 2⁴ = 137493731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137493749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 507222 + ... + 507492.

It is an arithmetic number, because the mean of its divisors is an integer number (3590400).

Almost surely, 2^137493747 is an apocalyptic number.

137493747 is a deficient number, since it is larger than the sum of its proper divisors (92291853).

137493747 is a wasteful number, since it uses less digits than its factorization.

137493747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 359 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 137493747 is about 11725.7727677113. The cubic root of 137493747 is about 516.1322335519.

The spelling of 137493747 in words is "one hundred thirty-seven million, four hundred ninety-three thousand, seven hundred forty-seven".