31043425 has 24 divisors (see below), whose sum is σ = 44836416. Its totient is φ = 20879040.

The previous prime is 31043417. The next prime is 31043443. The reversal of 31043425 is 52434013.

It is not a de Polignac number, because 31043425 - 2³ = 31043417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31043396 and 31043405.

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, 7602 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (1868184).

Almost surely, 2^31043425 is an apocalyptic number.

31043425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31043425 is a deficient number, since it is larger than the sum of its proper divisors (13792991).

31043425 is a wasteful number, since it uses less digits than its factorization.

31043425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 31043425 is about 5571.6626782317. The cubic root of 31043425 is about 314.2846790108.

Adding to 31043425 its reverse (52434013), we get a palindrome (83477438).

The spelling of 31043425 in words is "thirty-one million, forty-three thousand, four hundred twenty-five".