2143142401 has 4 divisors (see below), whose sum is σ = 2149502212. Its totient is φ = 2136782592.

The previous prime is 2143142371. The next prime is 2143142423. The reversal of 2143142401 is 1042413412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1169640000 + 973502401 = 34200^2 + 31201^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143142401 - 2¹¹ = 2143140353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143142471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179400 + ... + 3180073.

It is an arithmetic number, because the mean of its divisors is an integer number (537375553).

Almost surely, 2^2143142401 is an apocalyptic number.

It is an amenable number.

2143142401 is a deficient number, since it is larger than the sum of its proper divisors (6359811).

2143142401 is an equidigital number, since it uses as much as digits as its factorization.

2143142401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359810.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2143142401 is about 46294.0860261870. The cubic root of 2143142401 is about 1289.2891945723.

Adding to 2143142401 its reverse (1042413412), we get a palindrome (3185555813).

The spelling of 2143142401 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, four hundred one".