2141245 has 4 divisors (see below), whose sum is σ = 2569500. Its totient is φ = 1712992.

The previous prime is 2141219. The next prime is 2141257. The reversal of 2141245 is 5421412.

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 657721 + 1483524 = 811^2 + 1218^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141245 - 2⁵ = 2141213 is a prime.

2141245 is a lucky number.

It is a congruent 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, 214120 + ... + 214129.

It is an arithmetic number, because the mean of its divisors is an integer number (642375).

2^2141245 is an apocalyptic number.

It is an amenable number.

2141245 is a deficient number, since it is larger than the sum of its proper divisors (428255).

2141245 is an equidigital number, since it uses as much as digits as its factorization.

2141245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428254.

The product of its digits is 320, while the sum is 19.

The square root of 2141245 is about 1463.2993541993. The cubic root of 2141245 is about 128.8908597543.

Adding to 2141245 its reverse (5421412), we get a palindrome (7562657).

The spelling of 2141245 in words is "two million, one hundred forty-one thousand, two hundred forty-five".