31125241 has 9 divisors (see below), whose sum is σ = 36252399. Its totient is φ = 26645304.

The previous prime is 31125239. The next prime is 31125247. The reversal of 31125241 is 14252113.

The square root of 31125241 is 5579.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15093225 + 16032016 = 3885^2 + 4004^2 .

It is not a de Polignac number, because 31125241 - 2¹ = 31125239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31125247) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38655 + ... + 39451.

Almost surely, 2^31125241 is an apocalyptic number.

31125241 is the 5579-th square number.

31125241 is the 2790-th centered octagonal number.

It is an amenable number.

31125241 is a deficient number, since it is larger than the sum of its proper divisors (5127158).

31125241 is an frugal number, since it uses more digits than its factorization.

31125241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 804 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The cubic root of 31125241 is about 314.5605394514.

Adding to 31125241 its reverse (14252113), we get a palindrome (45377354).

It can be divided in two parts, 311 and 25241, that added together give a palindrome (25552).

The spelling of 31125241 in words is "thirty-one million, one hundred twenty-five thousand, two hundred forty-one".