245143201 has 6 divisors (see below), whose sum is σ = 249231606. Its totient is φ = 241120800.

The previous prime is 245143183. The next prime is 245143207. The reversal of 245143201 is 102341542.

245143201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7952400 + 237190801 = 2820^2 + 15401^2 .

It is not a de Polignac number, because 245143201 - 2⁵ = 245143169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245143207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29220 + ... + 36661.

It is an arithmetic number, because the mean of its divisors is an integer number (41538601).

Almost surely, 2^245143201 is an apocalyptic number.

It is an amenable number.

245143201 is a deficient number, since it is larger than the sum of its proper divisors (4088405).

245143201 is an frugal number, since it uses more digits than its factorization.

245143201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66003 (or 65942 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 245143201 is about 15657.0495624176. The cubic root of 245143201 is about 625.8543630898.

Adding to 245143201 its reverse (102341542), we get a palindrome (347484743).

The spelling of 245143201 in words is "two hundred forty-five million, one hundred forty-three thousand, two hundred one".