30831041 has 2 divisors, whose sum is σ = 30831042. Its totient is φ = 30831040.

The previous prime is 30831037. The next prime is 30831067. The reversal of 30831041 is 14013803.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 2262016 = 5345^2 + 1504^2 .

It is a cyclic number.

It is not a de Polignac number, because 30831041 - 2² = 30831037 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30831011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15415520 + 15415521.

It is an arithmetic number, because the mean of its divisors is an integer number (15415521).

Almost surely, 2^30831041 is an apocalyptic number.

It is an amenable number.

30831041 is a deficient number, since it is larger than the sum of its proper divisors (1).

30831041 is an equidigital number, since it uses as much as digits as its factorization.

30831041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 30831041 is about 5552.5706659168. The cubic root of 30831041 is about 313.5663106825.

Adding to 30831041 its reverse (14013803), we get a palindrome (44844844).

The spelling of 30831041 in words is "thirty million, eight hundred thirty-one thousand, forty-one".