19294013 has 2 divisors, whose sum is σ = 19294014. Its totient is φ = 19294012.

The previous prime is 19294001. The next prime is 19294021. The reversal of 19294013 is 31049291.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14462809 + 4831204 = 3803^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 19294013 - 2¹⁰ = 19292989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19297013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9647006 + 9647007.

It is an arithmetic number, because the mean of its divisors is an integer number (9647007).

Almost surely, 2^19294013 is an apocalyptic number.

It is an amenable number.

19294013 is a deficient number, since it is larger than the sum of its proper divisors (1).

19294013 is an equidigital number, since it uses as much as digits as its factorization.

19294013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19294013 is about 4392.4950768328. The cubic root of 19294013 is about 268.2095200133.

The spelling of 19294013 in words is "nineteen million, two hundred ninety-four thousand, thirteen".