445130089 has 2 divisors, whose sum is σ = 445130090. Its totient is φ = 445130088.

The previous prime is 445130083. The next prime is 445130107. The reversal of 445130089 is 980031544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420578064 + 24552025 = 20508^2 + 4955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445130089 is a prime.

It is a super-2 number, since 2×445130089² = 396281592266295842, which contains 22 as substring.

It is equal to p_23608519 and since 445130089 and 23608519 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (445130083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222565044 + 222565045.

It is an arithmetic number, because the mean of its divisors is an integer number (222565045).

Almost surely, 2^445130089 is an apocalyptic number.

It is an amenable number.

445130089 is a deficient number, since it is larger than the sum of its proper divisors (1).

445130089 is an equidigital number, since it uses as much as digits as its factorization.

445130089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 445130089 is about 21098.1062894280. The cubic root of 445130089 is about 763.5350602833.

The spelling of 445130089 in words is "four hundred forty-five million, one hundred thirty thousand, eighty-nine".