131420544 has 32 divisors (see below), whose sum is σ = 349086840. Its totient is φ = 43806720.

The previous prime is 131420521. The next prime is 131420561. The reversal of 131420544 is 445024131.

It is a tau number, because it is divible by the number of its divisors (32).

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

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, 170737 + ... + 171504.

Almost surely, 2^131420544 is an apocalyptic number.

It is an amenable number.

131420544 is an abundant number, since it is smaller than the sum of its proper divisors (217666296).

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

131420544 is an equidigital number, since it uses as much as digits as its factorization.

131420544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342258 (or 342246 counting only the distinct ones).

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

The square root of 131420544 is about 11463.8799714582. The cubic root of 131420544 is about 508.4181978055.

Adding to 131420544 its reverse (445024131), we get a palindrome (576444675).

The spelling of 131420544 in words is "one hundred thirty-one million, four hundred twenty thousand, five hundred forty-four".