19114639 has 2 divisors, whose sum is σ = 19114640. Its totient is φ = 19114638.

The previous prime is 19114591. The next prime is 19114649. The reversal of 19114639 is 93641191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19114639 - 2¹⁷ = 18983567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19114649) 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, 9557319 + 9557320.

It is an arithmetic number, because the mean of its divisors is an integer number (9557320).

Almost surely, 2^19114639 is an apocalyptic number.

19114639 is a deficient number, since it is larger than the sum of its proper divisors (1).

19114639 is an equidigital number, since it uses as much as digits as its factorization.

19114639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 19114639 is about 4372.0291627573. The cubic root of 19114639 is about 267.3757608643.

The spelling of 19114639 in words is "nineteen million, one hundred fourteen thousand, six hundred thirty-nine".