2143415245 has 4 divisors (see below), whose sum is σ = 2572098300. Its totient is φ = 1714732192.

The previous prime is 2143415227. The next prime is 2143415257. The reversal of 2143415245 is 5425143412.

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 1156136004 + 987279241 = 34002^2 + 31421^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143415245 - 2⁷ = 2143415117 is a prime.

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, 214341520 + ... + 214341529.

It is an arithmetic number, because the mean of its divisors is an integer number (643024575).

Almost surely, 2^2143415245 is an apocalyptic number.

It is an amenable number.

2143415245 is a deficient number, since it is larger than the sum of its proper divisors (428683055).

2143415245 is an equidigital number, since it uses as much as digits as its factorization.

2143415245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428683054.

The product of its digits is 19200, while the sum is 31.

The square root of 2143415245 is about 46297.0327882900. The cubic root of 2143415245 is about 1289.3439054949.

Adding to 2143415245 its reverse (5425143412), we get a palindrome (7568558657).

The spelling of 2143415245 in words is "two billion, one hundred forty-three million, four hundred fifteen thousand, two hundred forty-five".