2150243345 has 8 divisors (see below), whose sum is σ = 2650029864. Its totient is φ = 1673702784.

The previous prime is 2150243341. The next prime is 2150243353. The reversal of 2150243345 is 5433420512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1291108624 + 859134721 = 35932^2 + 29311^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2150243345 - 2² = 2150243341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2150243341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5811284 + ... + 5811653.

It is an arithmetic number, because the mean of its divisors is an integer number (331253733).

Almost surely, 2^2150243345 is an apocalyptic number.

It is an amenable number.

2150243345 is a deficient number, since it is larger than the sum of its proper divisors (499786519).

2150243345 is a wasteful number, since it uses less digits than its factorization.

2150243345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622979.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2150243345 is about 46370.7164598521. The cubic root of 2150243345 is about 1290.7115728461.

Adding to 2150243345 its reverse (5433420512), we get a palindrome (7583663857).

The spelling of 2150243345 in words is "two billion, one hundred fifty million, two hundred forty-three thousand, three hundred forty-five".