19113427 has 2 divisors, whose sum is σ = 19113428. Its totient is φ = 19113426.

The previous prime is 19113403. The next prime is 19113431. The reversal of 19113427 is 72431191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19113427 - 2¹⁹ = 18589139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19113395 and 19113404.

It is not a weakly prime, because it can be changed into another prime (19113467) 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, 9556713 + 9556714.

It is an arithmetic number, because the mean of its divisors is an integer number (9556714).

Almost surely, 2^19113427 is an apocalyptic number.

19113427 is a deficient number, since it is larger than the sum of its proper divisors (1).

19113427 is an equidigital number, since it uses as much as digits as its factorization.

19113427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

The square root of 19113427 is about 4371.8905521525. The cubic root of 19113427 is about 267.3701095888.

The spelling of 19113427 in words is "nineteen million, one hundred thirteen thousand, four hundred twenty-seven".