2115443 has 6 divisors (see below), whose sum is σ = 2325372. Its totient is φ = 1923020.

The previous prime is 2115437. The next prime is 2115457. The reversal of 2115443 is 3445112.

It is not a de Polignac number, because 2115443 - 2⁴ = 2115427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8621 + ... + 8862.

It is an arithmetic number, because the mean of its divisors is an integer number (387562).

2^2115443 is an apocalyptic number.

2115443 is a deficient number, since it is larger than the sum of its proper divisors (209929).

2115443 is a wasteful number, since it uses less digits than its factorization.

2115443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17505 (or 17494 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 2115443 is about 1454.4562557877. The cubic root of 2115443 is about 128.3710546710.

The spelling of 2115443 in words is "two million, one hundred fifteen thousand, four hundred forty-three".