2222140145 has 4 divisors (see below), whose sum is σ = 2666568180. Its totient is φ = 1777712112.

The previous prime is 2222140139. The next prime is 2222140177. The reversal of 2222140145 is 5410412222.

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 319086769 + 1903053376 = 17863^2 + 43624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222140145 - 2¹⁶ = 2222074609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2222140145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222214010 + ... + 222214019.

It is an arithmetic number, because the mean of its divisors is an integer number (666642045).

Almost surely, 2^2222140145 is an apocalyptic number.

It is an amenable number.

2222140145 is a deficient number, since it is larger than the sum of its proper divisors (444428035).

2222140145 is an equidigital number, since it uses as much as digits as its factorization.

2222140145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444428034.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2222140145 is about 47139.5815106583. The cubic root of 2222140145 is about 1304.9398141188.

Adding to 2222140145 its reverse (5410412222), we get a palindrome (7632552367).

The spelling of 2222140145 in words is "two billion, two hundred twenty-two million, one hundred forty thousand, one hundred forty-five".