137231284 has 12 divisors (see below), whose sum is σ = 240246244. Its totient is φ = 68589504.

The previous prime is 137231279. The next prime is 137231309. The reversal of 137231284 is 482132731.

It can be written as a sum of positive squares in 2 ways, for example, as 40602384 + 96628900 = 6372^2 + 9830^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9832 + ... + 19264.

Almost surely, 2^137231284 is an apocalyptic number.

It is an amenable number.

137231284 is a deficient number, since it is larger than the sum of its proper divisors (103014960).

137231284 is a wasteful number, since it uses less digits than its factorization.

137231284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13074 (or 13072 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 137231284 is about 11714.5757072119. The cubic root of 137231284 is about 515.8036079330.

The spelling of 137231284 in words is "one hundred thirty-seven million, two hundred thirty-one thousand, two hundred eighty-four".