31225441 has 8 divisors (see below), whose sum is σ = 33852224. Its totient is φ = 28630800.

The previous prime is 31225429. The next prime is 31225457. The reversal of 31225441 is 14452213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31225441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31225471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5991 + ... + 9916.

It is an arithmetic number, because the mean of its divisors is an integer number (4231528).

Almost surely, 2^31225441 is an apocalyptic number.

It is an amenable number.

31225441 is a deficient number, since it is larger than the sum of its proper divisors (2626783).

31225441 is a wasteful number, since it uses less digits than its factorization.

31225441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16071.

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

The square root of 31225441 is about 5587.9728882664. The cubic root of 31225441 is about 314.8977277794.

Adding to 31225441 its reverse (14452213), we get a palindrome (45677654).

The spelling of 31225441 in words is "thirty-one million, two hundred twenty-five thousand, four hundred forty-one".