131044425 has 24 divisors (see below), whose sum is σ = 228065760. Its totient is φ = 66211200.

The previous prime is 131044421. The next prime is 131044427. The reversal of 131044425 is 524440131.

It is not a de Polignac number, because 131044425 - 2² = 131044421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131044395 and 131044404.

It is not an unprimeable number, because it can be changed into a prime (131044421) 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, 44556 + ... + 47405.

It is an arithmetic number, because the mean of its divisors is an integer number (9502740).

Almost surely, 2^131044425 is an apocalyptic number.

131044425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131044425 is a deficient number, since it is larger than the sum of its proper divisors (97021335).

131044425 is a wasteful number, since it uses less digits than its factorization.

131044425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91993 (or 91988 counting only the distinct ones).

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

The square root of 131044425 is about 11447.4636928885. The cubic root of 131044425 is about 507.9327119114.

Adding to 131044425 its reverse (524440131), we get a palindrome (655484556).

The spelling of 131044425 in words is "one hundred thirty-one million, forty-four thousand, four hundred twenty-five".