2144376401 has 4 divisors (see below), whose sum is σ = 2147722404. Its totient is φ = 2141030400.

The previous prime is 2144376397. The next prime is 2144376427. The reversal of 2144376401 is 1046734412.

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 1257766225 + 886610176 = 35465^2 + 29776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144376401 - 2² = 2144376397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144376701) 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, 1672040 + ... + 1673321.

It is an arithmetic number, because the mean of its divisors is an integer number (536930601).

Almost surely, 2^2144376401 is an apocalyptic number.

It is an amenable number.

2144376401 is a deficient number, since it is larger than the sum of its proper divisors (3346003).

2144376401 is an equidigital number, since it uses as much as digits as its factorization.

2144376401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346002.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2144376401 is about 46307.4119445257. The cubic root of 2144376401 is about 1289.5366003763.

The spelling of 2144376401 in words is "two billion, one hundred forty-four million, three hundred seventy-six thousand, four hundred one".