2845513221 has 8 divisors (see below), whose sum is σ = 3847454784. Its totient is φ = 1870290240.

The previous prime is 2845513141. The next prime is 2845513259. The reversal of 2845513221 is 1223155482.

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

It is not a de Polignac number, because 2845513221 - 2¹⁵ = 2845480453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2845913221) 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, 6679396 + ... + 6679821.

It is an arithmetic number, because the mean of its divisors is an integer number (480931848).

Almost surely, 2^2845513221 is an apocalyptic number.

It is an amenable number.

2845513221 is a deficient number, since it is larger than the sum of its proper divisors (1001941563).

2845513221 is a wasteful number, since it uses less digits than its factorization.

2845513221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13359291.

The product of its digits is 19200, while the sum is 33.

The square root of 2845513221 is about 53343.3521725060. The cubic root of 2845513221 is about 1417.0555301101.

The spelling of 2845513221 in words is "two billion, eight hundred forty-five million, five hundred thirteen thousand, two hundred twenty-one".