2102345 has 12 divisors (see below), whose sum is σ = 2935044. Its totient is φ = 1441440.

The previous prime is 2102341. The next prime is 2102383. The reversal of 2102345 is 5432012.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 1882384 = 469^2 + 1372^2 .

It is not a de Polignac number, because 2102345 - 2² = 2102341 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 0 + 2²¹ + 3 + 4² + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (2102341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4046 + ... + 4535.

It is an arithmetic number, because the mean of its divisors is an integer number (244587).

2^2102345 is an apocalyptic number.

It is an amenable number.

2102345 is a deficient number, since it is larger than the sum of its proper divisors (832699).

2102345 is an equidigital number, since it uses as much as digits as its factorization.

2102345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8600 (or 8593 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2102345 is about 1449.9465507390. The cubic root of 2102345 is about 128.1055647697.

Adding to 2102345 its reverse (5432012), we get a palindrome (7534357).

The spelling of 2102345 in words is "two million, one hundred two thousand, three hundred forty-five".