1445011189 has 2 divisors, whose sum is σ = 1445011190. Its totient is φ = 1445011188.

The previous prime is 1445011181. The next prime is 1445011213. The reversal of 1445011189 is 9811105441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089990225 + 355020964 = 33015^2 + 18842^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445011189 - 2³ = 1445011181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1445011181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722505594 + 722505595.

It is an arithmetic number, because the mean of its divisors is an integer number (722505595).

Almost surely, 2^1445011189 is an apocalyptic number.

It is an amenable number.

1445011189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445011189 is an equidigital number, since it uses as much as digits as its factorization.

1445011189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 1445011189 is about 38013.3027899445. The cubic root of 1445011189 is about 1130.5516373619.

The spelling of 1445011189 in words is "one billion, four hundred forty-five million, eleven thousand, one hundred eighty-nine".