137478492 has 48 divisors (see below), whose sum is σ = 357280000. Its totient is φ = 45716400.

The previous prime is 137478487. The next prime is 137478493. The reversal of 137478492 is 294874731.

137478492 is a `hidden beast` number, since 137 + 478 + 49 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137478493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52617 + ... + 55167.

Almost surely, 2^137478492 is an apocalyptic number.

137478492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137478492 is an abundant number, since it is smaller than the sum of its proper divisors (219801508).

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

137478492 is a wasteful number, since it uses less digits than its factorization.

137478492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3055 counting only the distinct ones).

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

The square root of 137478492 is about 11725.1222594905. The cubic root of 137478492 is about 516.1131444694.

The spelling of 137478492 in words is "one hundred thirty-seven million, four hundred seventy-eight thousand, four hundred ninety-two".