2111345 has 8 divisors (see below), whose sum is σ = 2621160. Its totient is φ = 1630720.

The previous prime is 2111321. The next prime is 2111353. The reversal of 2111345 is 5431112.

It can be written as a sum of positive squares in 4 ways, for example, as 595984 + 1515361 = 772^2 + 1231^2 .

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

It is not a de Polignac number, because 2111345 - 2⁸ = 2111089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7136 + ... + 7425.

It is an arithmetic number, because the mean of its divisors is an integer number (327645).

2^2111345 is an apocalyptic number.

It is an amenable number.

2111345 is a deficient number, since it is larger than the sum of its proper divisors (509815).

2111345 is a wasteful number, since it uses less digits than its factorization.

2111345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14595.

The product of its digits is 120, while the sum is 17.

The square root of 2111345 is about 1453.0467989710. The cubic root of 2111345 is about 128.2881083500.

Adding to 2111345 its reverse (5431112), we get a palindrome (7542457).

The spelling of 2111345 in words is "two million, one hundred eleven thousand, three hundred forty-five".