280972031 has 6 divisors (see below), whose sum is σ = 282354696. Its totient is φ = 279596100.

The previous prime is 280972009. The next prime is 280972051. The reversal of 280972031 is 130279082.

It is not a de Polignac number, because 280972031 - 2⁶ = 280971967 is a prime.

It is a super-2 number, since 2×280972031² = 157890564408529922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280972051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41366 + ... + 47676.

It is an arithmetic number, because the mean of its divisors is an integer number (47059116).

Almost surely, 2^280972031 is an apocalyptic number.

280972031 is a deficient number, since it is larger than the sum of its proper divisors (1382665).

280972031 is an frugal number, since it uses more digits than its factorization.

280972031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733 (or 6522 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 280972031 is about 16762.2203481520. The cubic root of 280972031 is about 654.9694300361.

The spelling of 280972031 in words is "two hundred eighty million, nine hundred seventy-two thousand, thirty-one".