131402425 has 24 divisors (see below), whose sum is σ = 203147712. Its totient is φ = 81912000.

The previous prime is 131402419. The next prime is 131402431. The reversal of 131402425 is 524204131.

It is an interprime number because it is at equal distance from previous prime (131402419) and next prime (131402431).

It is not a de Polignac number, because 131402425 - 2¹⁷ = 131271353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131402396 and 131402405.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32206 + ... + 36055.

It is an arithmetic number, because the mean of its divisors is an integer number (8464488).

Almost surely, 2^131402425 is an apocalyptic number.

It is an amenable number.

131402425 is a deficient number, since it is larger than the sum of its proper divisors (71745287).

131402425 is a wasteful number, since it uses less digits than its factorization.

131402425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68289 (or 68284 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 131402425 is about 11463.0896794887. The cubic root of 131402425 is about 508.3948314620.

Adding to 131402425 its reverse (524204131), we get a palindrome (655606556).

The spelling of 131402425 in words is "one hundred thirty-one million, four hundred two thousand, four hundred twenty-five".