2042543201 has 4 divisors (see below), whose sum is σ = 2047154352. Its totient is φ = 2037932052.

The previous prime is 2042543179. The next prime is 2042543233. The reversal of 2042543201 is 1023452402.

It is a happy number.

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 2042543201 - 2²⁶ = 1975434337 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 (2042543291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304911 + ... + 2305796.

It is an arithmetic number, because the mean of its divisors is an integer number (511788588).

Almost surely, 2^2042543201 is an apocalyptic number.

It is an amenable number.

2042543201 is a deficient number, since it is larger than the sum of its proper divisors (4611151).

2042543201 is an equidigital number, since it uses as much as digits as its factorization.

2042543201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611150.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2042543201 is about 45194.5041017157. The cubic root of 2042543201 is about 1268.7919570487.

Adding to 2042543201 its reverse (1023452402), we get a palindrome (3065995603).

The spelling of 2042543201 in words is "two billion, forty-two million, five hundred forty-three thousand, two hundred one".