19931941 has 2 divisors, whose sum is σ = 19931942. Its totient is φ = 19931940.

The previous prime is 19931927. The next prime is 19931953. The reversal of 19931941 is 14913991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16524225 + 3407716 = 4065^2 + 1846^2 .

It is a cyclic number.

It is not a de Polignac number, because 19931941 - 2⁵ = 19931909 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19931941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19931921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9965970 + 9965971.

It is an arithmetic number, because the mean of its divisors is an integer number (9965971).

Almost surely, 2^19931941 is an apocalyptic number.

It is an amenable number.

19931941 is a deficient number, since it is larger than the sum of its proper divisors (1).

19931941 is an equidigital number, since it uses as much as digits as its factorization.

19931941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 37.

The square root of 19931941 is about 4464.5202429824. The cubic root of 19931941 is about 271.1335108263.

The spelling of 19931941 in words is "nineteen million, nine hundred thirty-one thousand, nine hundred forty-one".