137285388 has 24 divisors (see below), whose sum is σ = 355925360. Its totient is φ = 45761760.

The previous prime is 137285381. The next prime is 137285399. The reversal of 137285388 is 883582731.

It is not an unprimeable number, because it can be changed into a prime (137285381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635473 + ... + 635688.

Almost surely, 2^137285388 is an apocalyptic number.

137285388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137285388 is an abundant number, since it is smaller than the sum of its proper divisors (218639972).

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

137285388 is a wasteful number, since it uses less digits than its factorization.

137285388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271174 (or 1271166 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 137285388 is about 11716.8847395543. The cubic root of 137285388 is about 515.8713849270.

The spelling of 137285388 in words is "one hundred thirty-seven million, two hundred eighty-five thousand, three hundred eighty-eight".