137492487 has 24 divisors (see below), whose sum is σ = 217880208. Its totient is φ = 82857600.

The previous prime is 137492477. The next prime is 137492489. The reversal of 137492487 is 784294731.

137492487 is a `hidden beast` number, since 13 + 74 + 92 + 487 = 666.

It is not a de Polignac number, because 137492487 - 2¹¹ = 137490439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137492489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14083 + ... + 21755.

It is an arithmetic number, because the mean of its divisors is an integer number (9078342).

Almost surely, 2^137492487 is an apocalyptic number.

137492487 is a deficient number, since it is larger than the sum of its proper divisors (80387721).

137492487 is a wasteful number, since it uses less digits than its factorization.

137492487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871 (or 7868 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 137492487 is about 11725.7190397860. The cubic root of 137492487 is about 516.1306569260.

The spelling of 137492487 in words is "one hundred thirty-seven million, four hundred ninety-two thousand, four hundred eighty-seven".