2115445 has 16 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 1624000.

The previous prime is 2115437. The next prime is 2115457. The reversal of 2115445 is 5445112.

It is not a de Polignac number, because 2115445 - 2³ = 2115437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20895 + ... + 20995.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

2^2115445 is an apocalyptic number.

It is an amenable number.

2115445 is a deficient number, since it is larger than the sum of its proper divisors (528395).

2115445 is a wasteful number, since it uses less digits than its factorization.

2115445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236.

The product of its digits is 800, while the sum is 22.

The square root of 2115445 is about 1454.4569433297. The cubic root of 2115445 is about 128.3710951262.

The spelling of 2115445 in words is "two million, one hundred fifteen thousand, four hundred forty-five".