2144100818 has 4 divisors (see below), whose sum is σ = 3216151230. Its totient is φ = 1072050408.

The previous prime is 2144100817. The next prime is 2144100823. The reversal of 2144100818 is 8180014412.

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 only one way, i.e., 2132315329 + 11785489 = 46177^2 + 3433^2 .

It is not an unprimeable number, because it can be changed into a prime (2144100811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536025203 + ... + 536025206.

Almost surely, 2^2144100818 is an apocalyptic number.

2144100818 is a deficient number, since it is larger than the sum of its proper divisors (1072050412).

2144100818 is a wasteful number, since it uses less digits than its factorization.

2144100818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072050411.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 2144100818 is about 46304.4362669496. The cubic root of 2144100818 is about 1289.4813567183.

The spelling of 2144100818 in words is "two billion, one hundred forty-four million, one hundred thousand, eight hundred eighteen".