131452224 has 28 divisors (see below), whose sum is σ = 347801184. Its totient is φ = 43817344.

The previous prime is 131452219. The next prime is 131452253. The reversal of 131452224 is 422254131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131452194 and 131452203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342132 + ... + 342515.

Almost surely, 2^131452224 is an apocalyptic number.

It is an amenable number.

131452224 is an abundant number, since it is smaller than the sum of its proper divisors (216348960).

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

131452224 is an equidigital number, since it uses as much as digits as its factorization.

131452224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684662 (or 684652 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 131452224 is about 11465.2616193439. The cubic root of 131452224 is about 508.4590473154.

The spelling of 131452224 in words is "one hundred thirty-one million, four hundred fifty-two thousand, two hundred twenty-four".