22139419 has 2 divisors, whose sum is σ = 22139420. Its totient is φ = 22139418.

The previous prime is 22139407. The next prime is 22139437. The reversal of 22139419 is 91493122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22139419 - 2¹¹ = 22137371 is a prime.

It is a super-2 number, since 2×22139419² = 980307747315122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22139449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11069709 + 11069710.

It is an arithmetic number, because the mean of its divisors is an integer number (11069710).

Almost surely, 2^22139419 is an apocalyptic number.

22139419 is a deficient number, since it is larger than the sum of its proper divisors (1).

22139419 is an equidigital number, since it uses as much as digits as its factorization.

22139419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 22139419 is about 4705.2544033240. The cubic root of 22139419 is about 280.7945924384.

The spelling of 22139419 in words is "twenty-two million, one hundred thirty-nine thousand, four hundred nineteen".