19220023 has 2 divisors, whose sum is σ = 19220024. Its totient is φ = 19220022.

The previous prime is 19220009. The next prime is 19220029. The reversal of 19220023 is 32002291.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19220023 - 2⁹ = 19219511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19220029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9610011 + 9610012.

It is an arithmetic number, because the mean of its divisors is an integer number (9610012).

Almost surely, 2^19220023 is an apocalyptic number.

19220023 is a deficient number, since it is larger than the sum of its proper divisors (1).

19220023 is an equidigital number, since it uses as much as digits as its factorization.

19220023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 19220023 is about 4384.0646664939. The cubic root of 19220023 is about 267.8662314156.

The spelling of 19220023 in words is "nineteen million, two hundred twenty thousand, twenty-three".