2145443201 has 4 divisors (see below), whose sum is σ = 2340483504. Its totient is φ = 1950402900.

The previous prime is 2145443191. The next prime is 2145443207. The reversal of 2145443201 is 1023445412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2145443201 - 2¹⁴ = 2145426817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145443207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97520135 + ... + 97520156.

It is an arithmetic number, because the mean of its divisors is an integer number (585120876).

Almost surely, 2^2145443201 is an apocalyptic number.

It is an amenable number.

2145443201 is a deficient number, since it is larger than the sum of its proper divisors (195040303).

2145443201 is a wasteful number, since it uses less digits than its factorization.

2145443201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195040302.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2145443201 is about 46318.9291866727. The cubic root of 2145443201 is about 1289.7504076135.

Adding to 2145443201 its reverse (1023445412), we get a palindrome (3168888613).

The spelling of 2145443201 in words is "two billion, one hundred forty-five million, four hundred forty-three thousand, two hundred one".