22143091 has 2 divisors, whose sum is σ = 22143092. Its totient is φ = 22143090.

The previous prime is 22143073. The next prime is 22143101. The reversal of 22143091 is 19034122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22143091 - 2¹¹ = 22141043 is a prime.

It is not a weakly prime, because it can be changed into another prime (22143001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071545 + 11071546.

It is an arithmetic number, because the mean of its divisors is an integer number (11071546).

Almost surely, 2^22143091 is an apocalyptic number.

22143091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143091 is an equidigital number, since it uses as much as digits as its factorization.

22143091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 22143091 is about 4705.6445892141. The cubic root of 22143091 is about 280.8101155911.

The spelling of 22143091 in words is "twenty-two million, one hundred forty-three thousand, ninety-one".