31145241 has 12 divisors (see below), whose sum is σ = 44114672. Its totient is φ = 19541568.

The previous prime is 31145227. The next prime is 31145293. The reversal of 31145241 is 14254113.

It is not a de Polignac number, because 31145241 - 2⁷ = 31145113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31145221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17095 + ... + 18828.

Almost surely, 2^31145241 is an apocalyptic number.

It is an amenable number.

31145241 is a deficient number, since it is larger than the sum of its proper divisors (12969431).

31145241 is a wasteful number, since it uses less digits than its factorization.

31145241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35960 (or 35943 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 31145241 is about 5580.7921480736. The cubic root of 31145241 is about 314.6279002553.

Adding to 31145241 its reverse (14254113), we get a palindrome (45399354).

The spelling of 31145241 in words is "thirty-one million, one hundred forty-five thousand, two hundred forty-one".