19140227 has 2 divisors, whose sum is σ = 19140228. Its totient is φ = 19140226.

The previous prime is 19140221. The next prime is 19140241. The reversal of 19140227 is 72204191.

It is a weak prime.

It is an emirp because it is prime and its reverse (72204191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19140227 - 2¹⁰ = 19139203 is a prime.

It is a super-2 number, since 2×19140227² = 732696579223058, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19140196 and 19140205.

It is not a weakly prime, because it can be changed into another prime (19140221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9570113 + 9570114.

It is an arithmetic number, because the mean of its divisors is an integer number (9570114).

Almost surely, 2^19140227 is an apocalyptic number.

19140227 is a deficient number, since it is larger than the sum of its proper divisors (1).

19140227 is an equidigital number, since it uses as much as digits as its factorization.

19140227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 19140227 is about 4374.9545140493. The cubic root of 19140227 is about 267.4950160658.

The spelling of 19140227 in words is "nineteen million, one hundred forty thousand, two hundred twenty-seven".