2145450203 has 8 divisors (see below), whose sum is σ = 2320075296. Its totient is φ = 1972195200.

The previous prime is 2145450199. The next prime is 2145450233. The reversal of 2145450203 is 3020545412.

It is a happy number.

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 2145450203 - 2² = 2145450199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145450233) 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, 339263 + ... + 345528.

It is an arithmetic number, because the mean of its divisors is an integer number (290009412).

Almost surely, 2^2145450203 is an apocalyptic number.

2145450203 is a deficient number, since it is larger than the sum of its proper divisors (174625093).

2145450203 is a wasteful number, since it uses less digits than its factorization.

2145450203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685045.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2145450203 is about 46319.0047712599. The cubic root of 2145450203 is about 1289.7518107148.

Adding to 2145450203 its reverse (3020545412), we get a palindrome (5165995615).

The spelling of 2145450203 in words is "two billion, one hundred forty-five million, four hundred fifty thousand, two hundred three".