22159601 has 2 divisors, whose sum is σ = 22159602. Its totient is φ = 22159600.

The previous prime is 22159583. The next prime is 22159667. The reversal of 22159601 is 10695122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19149376 + 3010225 = 4376^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 22159601 - 2¹⁴ = 22143217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22159691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11079800 + 11079801.

It is an arithmetic number, because the mean of its divisors is an integer number (11079801).

Almost surely, 2^22159601 is an apocalyptic number.

It is an amenable number.

22159601 is a deficient number, since it is larger than the sum of its proper divisors (1).

22159601 is an equidigital number, since it uses as much as digits as its factorization.

22159601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 22159601 is about 4707.3985384711. The cubic root of 22159601 is about 280.8798893975.

The spelling of 22159601 in words is "twenty-two million, one hundred fifty-nine thousand, six hundred one".