31041425 has 18 divisors (see below), whose sum is σ = 39193362. Its totient is φ = 24387840.

The previous prime is 31041403. The next prime is 31041427. The reversal of 31041425 is 52414013.

It can be written as a sum of positive squares in 9 ways, for example, as 10647169 + 20394256 = 3263^2 + 4516^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31041425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31041397 and 31041406.

It is not an unprimeable number, because it can be changed into a prime (31041427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 133109 + ... + 133341.

It is an arithmetic number, because the mean of its divisors is an integer number (2177409).

Almost surely, 2^31041425 is an apocalyptic number.

It is an amenable number.

31041425 is a deficient number, since it is larger than the sum of its proper divisors (8151937).

31041425 is an equidigital number, since it uses as much as digits as its factorization.

31041425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 31041425 is about 5571.4831957029. The cubic root of 31041425 is about 314.2779295100.

Adding to 31041425 its reverse (52414013), we get a palindrome (83455438).

The spelling of 31041425 in words is "thirty-one million, forty-one thousand, four hundred twenty-five".