2245548989 has 8 divisors (see below), whose sum is σ = 2378146680. Its totient is φ = 2113007616.

The previous prime is 2245548971. The next prime is 2245549001. The reversal of 2245548989 is 9898455422.

It can be written as a sum of positive squares in 4 ways, for example, as 170746489 + 2074802500 = 13067^2 + 45550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2245548989 - 2¹⁶ = 2245483453 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 (2245548089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90107 + ... + 112295.

It is an arithmetic number, because the mean of its divisors is an integer number (297268335).

Almost surely, 2^2245548989 is an apocalyptic number.

It is an amenable number.

2245548989 is a deficient number, since it is larger than the sum of its proper divisors (132597691).

2245548989 is a wasteful number, since it uses less digits than its factorization.

2245548989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28159.

The product of its digits is 8294400, while the sum is 56.

The square root of 2245548989 is about 47387.2239005410. The cubic root of 2245548989 is about 1309.5060564221.

The spelling of 2245548989 in words is "two billion, two hundred forty-five million, five hundred forty-eight thousand, nine hundred eighty-nine".