280131457 has 12 divisors (see below), whose sum is σ = 300393360. Its totient is φ = 261160256.

The previous prime is 280131451. The next prime is 280131463. The reversal of 280131457 is 754131082.

It is an interprime number because it is at equal distance from previous prime (280131451) and next prime (280131463).

It is a de Polignac number, because none of the positive numbers 2^k-280131457 is a prime.

It is a super-4 number, since 4×280131457⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280131451) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26394 + ... + 35452.

It is an arithmetic number, because the mean of its divisors is an integer number (25032780).

Almost surely, 2^280131457 is an apocalyptic number.

It is an amenable number.

280131457 is a deficient number, since it is larger than the sum of its proper divisors (20261903).

280131457 is a wasteful number, since it uses less digits than its factorization.

280131457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9200 (or 9183 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 280131457 is about 16737.1280989302. The cubic root of 280131457 is about 654.3156280585.

The spelling of 280131457 in words is "two hundred eighty million, one hundred thirty-one thousand, four hundred fifty-seven".