131422425 has 48 divisors (see below), whose sum is σ = 225818880. Its totient is φ = 67392000.

The previous prime is 131422381. The next prime is 131422453. The reversal of 131422425 is 524224131.

It is not a de Polignac number, because 131422425 - 2⁸ = 131422169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131422395 and 131422404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242655 + ... + 243195.

It is an arithmetic number, because the mean of its divisors is an integer number (4704560).

Almost surely, 2^131422425 is an apocalyptic number.

131422425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131422425 is a deficient number, since it is larger than the sum of its proper divisors (94396455).

131422425 is a wasteful number, since it uses less digits than its factorization.

131422425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 669 counting only the distinct ones).

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

The square root of 131422425 is about 11463.9620114514. The cubic root of 131422425 is about 508.4206234284.

Adding to 131422425 its reverse (524224131), we get a palindrome (655646556).

The spelling of 131422425 in words is "one hundred thirty-one million, four hundred twenty-two thousand, four hundred twenty-five".