22091603 has 2 divisors, whose sum is σ = 22091604. Its totient is φ = 22091602.

The previous prime is 22091539. The next prime is 22091611. The reversal of 22091603 is 30619022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22091603 - 2⁶ = 22091539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22091683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11045801 + 11045802.

It is an arithmetic number, because the mean of its divisors is an integer number (11045802).

Almost surely, 2^22091603 is an apocalyptic number.

22091603 is a deficient number, since it is larger than the sum of its proper divisors (1).

22091603 is an equidigital number, since it uses as much as digits as its factorization.

22091603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 22091603 is about 4700.1705288213. The cubic root of 22091603 is about 280.5922963759.

The spelling of 22091603 in words is "twenty-two million, ninety-one thousand, six hundred three".