1445979589 has 4 divisors (see below), whose sum is σ = 1455684300. Its totient is φ = 1436274880.

The previous prime is 1445979569. The next prime is 1445979599. The reversal of 1445979589 is 9859795441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9859795441 = 7307 ⋅1349363.

It can be written as a sum of positive squares in 2 ways, for example, as 369024100 + 1076955489 = 19210^2 + 32817^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445979589 - 2⁹ = 1445979077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445979569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4852132 + ... + 4852429.

It is an arithmetic number, because the mean of its divisors is an integer number (363921075).

Almost surely, 2^1445979589 is an apocalyptic number.

It is an amenable number.

1445979589 is a deficient number, since it is larger than the sum of its proper divisors (9704711).

1445979589 is an equidigital number, since it uses as much as digits as its factorization.

1445979589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704710.

The product of its digits is 16329600, while the sum is 61.

The square root of 1445979589 is about 38026.0383027209. The cubic root of 1445979589 is about 1130.8041340744.

The spelling of 1445979589 in words is "one billion, four hundred forty-five million, nine hundred seventy-nine thousand, five hundred eighty-nine".