131144280 has 64 divisors (see below), whose sum is σ = 404079840. Its totient is φ = 34025472.

The previous prime is 131144267. The next prime is 131144303. The reversal of 131144280 is 82441131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 131144280.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10329 + ... + 19208.

Almost surely, 2^131144280 is an apocalyptic number.

131144280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131144280 is an abundant number, since it is smaller than the sum of its proper divisors (272935560).

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

131144280 is a wasteful number, since it uses less digits than its factorization.

131144280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29588 (or 29584 counting only the distinct ones).

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

The square root of 131144280 is about 11451.8243088165. The cubic root of 131144280 is about 508.0616929643.

The spelling of 131144280 in words is "one hundred thirty-one million, one hundred forty-four thousand, two hundred eighty".