22130609 has 2 divisors, whose sum is σ = 22130610. Its totient is φ = 22130608.

The previous prime is 22130587. The next prime is 22130653. The reversal of 22130609 is 90603122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12271009 + 9859600 = 3503^2 + 3140^2 .

It is a cyclic number.

It is not a de Polignac number, because 22130609 - 2²⁴ = 5353393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22130659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065304 + 11065305.

It is an arithmetic number, because the mean of its divisors is an integer number (11065305).

Almost surely, 2^22130609 is an apocalyptic number.

It is an amenable number.

22130609 is a deficient number, since it is larger than the sum of its proper divisors (1).

22130609 is an equidigital number, since it uses as much as digits as its factorization.

22130609 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 22130609 is about 4704.3181227464. The cubic root of 22130609 is about 280.7573417083.

The spelling of 22130609 in words is "twenty-two million, one hundred thirty thousand, six hundred nine".