131425403 has 2 divisors, whose sum is σ = 131425404. Its totient is φ = 131425402.

The previous prime is 131425387. The next prime is 131425439. The reversal of 131425403 is 304524131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131425403 - 2⁴ = 131425387 is a prime.

It is not a weakly prime, because it can be changed into another prime (131925403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65712701 + 65712702.

It is an arithmetic number, because the mean of its divisors is an integer number (65712702).

Almost surely, 2^131425403 is an apocalyptic number.

131425403 is a deficient number, since it is larger than the sum of its proper divisors (1).

131425403 is an equidigital number, since it uses as much as digits as its factorization.

131425403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 131425403 is about 11464.0918960029. The cubic root of 131425403 is about 508.4244636284.

Adding to 131425403 its reverse (304524131), we get a palindrome (435949534).

The spelling of 131425403 in words is "one hundred thirty-one million, four hundred twenty-five thousand, four hundred three".