137891288 has 16 divisors (see below), whose sum is σ = 267462000. Its totient is φ = 66568096.

The previous prime is 137891287. The next prime is 137891309. The reversal of 137891288 is 882198731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137891287) 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 3 ways as a sum of consecutive naturals, for example, 296948 + ... + 297411.

It is an arithmetic number, because the mean of its divisors is an integer number (16716375).

Almost surely, 2^137891288 is an apocalyptic number.

It is an amenable number.

137891288 is a deficient number, since it is larger than the sum of its proper divisors (129570712).

137891288 is a wasteful number, since it uses less digits than its factorization.

137891288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594394 (or 594390 counting only the distinct ones).

The product of its digits is 193536, while the sum is 47.

The square root of 137891288 is about 11742.7121228445. The cubic root of 137891288 is about 516.6291926110.

The spelling of 137891288 in words is "one hundred thirty-seven million, eight hundred ninety-one thousand, two hundred eighty-eight".