137784232 has 32 divisors (see below), whose sum is σ = 262359720. Its totient is φ = 67829760.

The previous prime is 137784223. The next prime is 137784253. The reversal of 137784232 is 232487731.

It can be written as a sum of positive squares in 4 ways, for example, as 120428676 + 17355556 = 10974^2 + 4166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137784191 and 137784200.

It is an unprimeable number.

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, 214632 + ... + 215272.

Almost surely, 2^137784232 is an apocalyptic number.

It is an amenable number.

137784232 is a deficient number, since it is larger than the sum of its proper divisors (124575488).

137784232 is a wasteful number, since it uses less digits than its factorization.

137784232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1017 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 137784232 is about 11738.1528359448. The cubic root of 137784232 is about 516.4954578522.

It can be divided in two parts, 13778 and 4232, that multiplied together give a square (58308496 = 7636²).

The spelling of 137784232 in words is "one hundred thirty-seven million, seven hundred eighty-four thousand, two hundred thirty-two".