31065941 has 2 divisors, whose sum is σ = 31065942. Its totient is φ = 31065940.

The previous prime is 31065901. The next prime is 31065949. The reversal of 31065941 is 14956013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22363441 + 8702500 = 4729^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 31065941 - 2⁶ = 31065877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31065949) 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, 15532970 + 15532971.

It is an arithmetic number, because the mean of its divisors is an integer number (15532971).

Almost surely, 2^31065941 is an apocalyptic number.

It is an amenable number.

31065941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31065941 is an equidigital number, since it uses as much as digits as its factorization.

31065941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 31065941 is about 5573.6828937427. The cubic root of 31065941 is about 314.3606448947.

The spelling of 31065941 in words is "thirty-one million, sixty-five thousand, nine hundred forty-one".