22142719 has 2 divisors, whose sum is σ = 22142720. Its totient is φ = 22142718.

The previous prime is 22142713. The next prime is 22142723. The reversal of 22142719 is 91724122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22142719 - 2¹⁵ = 22109951 is a prime.

It is a super-2 number, since 2×22142719² = 980600009425922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22142713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071359 + 11071360.

It is an arithmetic number, because the mean of its divisors is an integer number (11071360).

Almost surely, 2^22142719 is an apocalyptic number.

22142719 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142719 is an equidigital number, since it uses as much as digits as its factorization.

22142719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 22142719 is about 4705.6050620510. The cubic root of 22142719 is about 280.8085430622.

The spelling of 22142719 in words is "twenty-two million, one hundred forty-two thousand, seven hundred nineteen".