601091089 has 2 divisors, whose sum is σ = 601091090. Its totient is φ = 601091088.

The previous prime is 601091081. The next prime is 601091093. The reversal of 601091089 is 980190106.

601091089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465135489 + 135955600 = 21567^2 + 11660^2 .

It is a cyclic number.

It is not a de Polignac number, because 601091089 - 2³ = 601091081 is a prime.

It is a super-2 number, since 2×601091089² = 722620994550411842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (601091081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300545544 + 300545545.

It is an arithmetic number, because the mean of its divisors is an integer number (300545545).

Almost surely, 2^601091089 is an apocalyptic number.

It is an amenable number.

601091089 is a deficient number, since it is larger than the sum of its proper divisors (1).

601091089 is an equidigital number, since it uses as much as digits as its factorization.

601091089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 601091089 is about 24517.1590727800. The cubic root of 601091089 is about 843.9436113244.

The spelling of 601091089 in words is "six hundred one million, ninety-one thousand, eighty-nine".