131425433 has 4 divisors (see below), whose sum is σ = 132231888. Its totient is φ = 130618980.

The previous prime is 131425403. The next prime is 131425439. The reversal of 131425433 is 334524131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334524131 = 31 ⋅10791101.

It is a cyclic number.

It is not a de Polignac number, because 131425433 - 2¹⁰ = 131424409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131425439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402983 + ... + 403308.

It is an arithmetic number, because the mean of its divisors is an integer number (33057972).

Almost surely, 2^131425433 is an apocalyptic number.

It is an amenable number.

131425433 is a deficient number, since it is larger than the sum of its proper divisors (806455).

131425433 is an equidigital number, since it uses as much as digits as its factorization.

131425433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806454.

The product of its digits is 4320, while the sum is 26.

The square root of 131425433 is about 11464.0932044362. The cubic root of 131425433 is about 508.4245023138.

Adding to 131425433 its reverse (334524131), we get a palindrome (465949564).

The spelling of 131425433 in words is "one hundred thirty-one million, four hundred twenty-five thousand, four hundred thirty-three".