2132345 has 4 divisors (see below), whose sum is σ = 2558820. Its totient is φ = 1705872.

The previous prime is 2132323. The next prime is 2132359. The reversal of 2132345 is 5432312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1530169 + 602176 = 1237^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132345 - 2⁶ = 2132281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213230 + ... + 213239.

It is an arithmetic number, because the mean of its divisors is an integer number (639705).

2^2132345 is an apocalyptic number.

It is an amenable number.

2132345 is a deficient number, since it is larger than the sum of its proper divisors (426475).

2132345 is an equidigital number, since it uses as much as digits as its factorization.

2132345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426474.

The product of its digits is 720, while the sum is 20.

The square root of 2132345 is about 1460.2551146974. The cubic root of 2132345 is about 128.7120351820.

Adding to 2132345 its reverse (5432312), we get a palindrome (7564657).

The spelling of 2132345 in words is "two million, one hundred thirty-two thousand, three hundred forty-five".