19115423 has 2 divisors, whose sum is σ = 19115424. Its totient is φ = 19115422.

The previous prime is 19115381. The next prime is 19115441. The reversal of 19115423 is 32451191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19115423 - 2¹⁶ = 19049887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19115392 and 19115401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19115023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9557711 + 9557712.

It is an arithmetic number, because the mean of its divisors is an integer number (9557712).

Almost surely, 2^19115423 is an apocalyptic number.

19115423 is a deficient number, since it is larger than the sum of its proper divisors (1).

19115423 is an equidigital number, since it uses as much as digits as its factorization.

19115423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 19115423 is about 4372.1188227220. The cubic root of 19115423 is about 267.3794163476.

The spelling of 19115423 in words is "nineteen million, one hundred fifteen thousand, four hundred twenty-three".