283131028 has 6 divisors (see below), whose sum is σ = 495479306. Its totient is φ = 141565512.

The previous prime is 283131007. The next prime is 283131041. The reversal of 283131028 is 820131382.

It can be written as a sum of positive squares in only one way, i.e., 251793424 + 31337604 = 15868^2 + 5598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 283130987 and 283131005.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35391375 + ... + 35391382.

Almost surely, 2^283131028 is an apocalyptic number.

It is an amenable number.

283131028 is a deficient number, since it is larger than the sum of its proper divisors (212348278).

283131028 is a wasteful number, since it uses less digits than its factorization.

283131028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70782761 (or 70782759 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 283131028 is about 16826.4977936587. The cubic root of 283131028 is about 656.6427525569.

The spelling of 283131028 in words is "two hundred eighty-three million, one hundred thirty-one thousand, twenty-eight".