2981345 has 12 divisors (see below), whose sum is σ = 3710460. Its totient is φ = 2299584.

The previous prime is 2981339. The next prime is 2981357. The reversal of 2981345 is 5431892.

It can be written as a sum of positive squares in 6 ways, for example, as 185761 + 2795584 = 431^2 + 1672^2 .

It is not a de Polignac number, because 2981345 - 2⁸ = 2981089 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3851 + ... + 4559.

It is an arithmetic number, because the mean of its divisors is an integer number (309205).

2^2981345 is an apocalyptic number.

It is an amenable number.

2981345 is a deficient number, since it is larger than the sum of its proper divisors (729115).

2981345 is an equidigital number, since it uses as much as digits as its factorization.

2981345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 743 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 2981345 is about 1726.6571750061. The cubic root of 2981345 is about 143.9253889460.

The spelling of 2981345 in words is "two million, nine hundred eighty-one thousand, three hundred forty-five".