19142927 has 2 divisors, whose sum is σ = 19142928. Its totient is φ = 19142926.

The previous prime is 19142917. The next prime is 19142933. The reversal of 19142927 is 72924191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19142927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19142917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9571463 + 9571464.

It is an arithmetic number, because the mean of its divisors is an integer number (9571464).

Almost surely, 2^19142927 is an apocalyptic number.

19142927 is a deficient number, since it is larger than the sum of its proper divisors (1).

19142927 is an equidigital number, since it uses as much as digits as its factorization.

19142927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 19142927 is about 4375.2630778046. The cubic root of 19142927 is about 267.5075934607.

The spelling of 19142927 in words is "nineteen million, one hundred forty-two thousand, nine hundred twenty-seven".