4222623145 has 8 divisors (see below), whose sum is σ = 5456928456. Its totient is φ = 3118244736.

The previous prime is 4222623121. The next prime is 4222623151. The reversal of 4222623145 is 5413262224.

It can be written as a sum of positive squares in 4 ways, for example, as 404371881 + 3818251264 = 20109^2 + 61792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4222623145 - 2⁷ = 4222623017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32481652 + ... + 32481781.

It is an arithmetic number, because the mean of its divisors is an integer number (682116057).

Almost surely, 2^4222623145 is an apocalyptic number.

It is an amenable number.

4222623145 is a deficient number, since it is larger than the sum of its proper divisors (1234305311).

4222623145 is a wasteful number, since it uses less digits than its factorization.

4222623145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64963451.

The product of its digits is 23040, while the sum is 31.

The square root of 4222623145 is about 64981.7139278428. The cubic root of 4222623145 is about 1616.3203514873.

Adding to 4222623145 its reverse (5413262224), we get a palindrome (9635885369).

The spelling of 4222623145 in words is "four billion, two hundred twenty-two million, six hundred twenty-three thousand, one hundred forty-five".