19135427 has 2 divisors, whose sum is σ = 19135428. Its totient is φ = 19135426.

The previous prime is 19135399. The next prime is 19135429. The reversal of 19135427 is 72453191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19135427 - 2²² = 14941123 is a prime.

Together with 19135429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19135393 and 19135402.

It is not a weakly prime, because it can be changed into another prime (19135429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9567713 + 9567714.

It is an arithmetic number, because the mean of its divisors is an integer number (9567714).

Almost surely, 2^19135427 is an apocalyptic number.

19135427 is a deficient number, since it is larger than the sum of its proper divisors (1).

19135427 is an equidigital number, since it uses as much as digits as its factorization.

19135427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 19135427 is about 4374.4059025198. The cubic root of 19135427 is about 267.4726533316.

The spelling of 19135427 in words is "nineteen million, one hundred thirty-five thousand, four hundred twenty-seven".