7228189501 has 8 divisors (see below), whose sum is σ = 7994588504. Its totient is φ = 6491845440.

The previous prime is 7228189483. The next prime is 7228189547. The reversal of 7228189501 is 1059818227.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1341463876 + 5886725625 = 36626^2 + 76725^2 .

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 7228189501 - 2⁵ = 7228189469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228189601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7513230 + ... + 7514191.

It is an arithmetic number, because the mean of its divisors is an integer number (999323563).

Almost surely, 2^7228189501 is an apocalyptic number.

It is an amenable number.

7228189501 is a deficient number, since it is larger than the sum of its proper divisors (766399003).

7228189501 is a wasteful number, since it uses less digits than its factorization.

7228189501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027471.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 7228189501 is about 85018.7597004332. The cubic root of 7228189501 is about 1933.4955489699.

The spelling of 7228189501 in words is "seven billion, two hundred twenty-eight million, one hundred eighty-nine thousand, five hundred one".