31941073 has 2 divisors, whose sum is σ = 31941074. Its totient is φ = 31941072.

The previous prime is 31941047. The next prime is 31941083. The reversal of 31941073 is 37014913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29844369 + 2096704 = 5463^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 31941073 - 2²¹ = 29843921 is a prime.

It is not a weakly prime, because it can be changed into another prime (31941083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15970536 + 15970537.

It is an arithmetic number, because the mean of its divisors is an integer number (15970537).

Almost surely, 2^31941073 is an apocalyptic number.

It is an amenable number.

31941073 is a deficient number, since it is larger than the sum of its proper divisors (1).

31941073 is an equidigital number, since it uses as much as digits as its factorization.

31941073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 31941073 is about 5651.6433893161. The cubic root of 31941073 is about 317.2852140226.

Adding to 31941073 its reverse (37014913), we get a palindrome (68955986).

The spelling of 31941073 in words is "thirty-one million, nine hundred forty-one thousand, seventy-three".