22143049 has 2 divisors, whose sum is σ = 22143050. Its totient is φ = 22143048.

The previous prime is 22143041. The next prime is 22143053. The reversal of 22143049 is 94034122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 937024 = 4605^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 22143049 - 2³ = 22143041 is a prime.

It is not a weakly prime, because it can be changed into another prime (22143041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071524 + 11071525.

It is an arithmetic number, because the mean of its divisors is an integer number (11071525).

Almost surely, 2^22143049 is an apocalyptic number.

It is an amenable number.

22143049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143049 is an equidigital number, since it uses as much as digits as its factorization.

22143049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22143049 is about 4705.6401264865. The cubic root of 22143049 is about 280.8099380484.

The spelling of 22143049 in words is "twenty-two million, one hundred forty-three thousand, forty-nine".