131122284 has 24 divisors (see below), whose sum is σ = 306152448. Its totient is φ = 43678800.

The previous prime is 131122261. The next prime is 131122291. The reversal of 131122284 is 482221131.

It is a super-2 number, since 2×131122284² = 34386106722753312, which contains 22 as substring.

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, 24009 + ... + 28959.

It is an arithmetic number, because the mean of its divisors is an integer number (12756352).

Almost surely, 2^131122284 is an apocalyptic number.

It is an amenable number.

131122284 is an abundant number, since it is smaller than the sum of its proper divisors (175030164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131122284 is a wasteful number, since it uses less digits than its factorization.

131122284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165 (or 7163 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 131122284 is about 11450.8638975407. The cubic root of 131122284 is about 508.0332867188.

The spelling of 131122284 in words is "one hundred thirty-one million, one hundred twenty-two thousand, two hundred eighty-four".