131322425 has 24 divisors (see below), whose sum is σ = 177113664. Its totient is φ = 96010560.

The previous prime is 131322421. The next prime is 131322427. The reversal of 131322425 is 524223131.

It is not a de Polignac number, because 131322425 - 2² = 131322421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131322425.

It is not an unprimeable number, because it can be changed into a prime (131322421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31514 + ... + 35436.

It is an arithmetic number, because the mean of its divisors is an integer number (7379736).

Almost surely, 2^131322425 is an apocalyptic number.

It is an amenable number.

131322425 is a deficient number, since it is larger than the sum of its proper divisors (45791239).

131322425 is a wasteful number, since it uses less digits than its factorization.

131322425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4044 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 131322425 is about 11459.5996875982. The cubic root of 131322425 is about 508.2916374173.

Adding to 131322425 its reverse (524223131), we get a palindrome (655545556).

The spelling of 131322425 in words is "one hundred thirty-one million, three hundred twenty-two thousand, four hundred twenty-five".