285136732 has 12 divisors (see below), whose sum is σ = 499131976. Its totient is φ = 142527600.

The previous prime is 285136723. The next prime is 285136757. The reversal of 285136732 is 237631582.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 285136691 and 285136700.

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, 9982 + ... + 25882.

Almost surely, 2^285136732 is an apocalyptic number.

It is an amenable number.

285136732 is a deficient number, since it is larger than the sum of its proper divisors (213995244).

285136732 is a wasteful number, since it uses less digits than its factorization.

285136732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20388 (or 20386 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 285136732 is about 16885.9921828716. The cubic root of 285136732 is about 658.1896608694.

It can be divided in two parts, 28513 and 6732, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 285136732 in words is "two hundred eighty-five million, one hundred thirty-six thousand, seven hundred thirty-two".