7220911153 has 4 divisors (see below), whose sum is σ = 7222789108. Its totient is φ = 7219033200.

The previous prime is 7220911141. The next prime is 7220911199. The reversal of 7220911153 is 3511190227.

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 5543844849 + 1677066304 = 74457^2 + 40952^2 .

It is a cyclic number.

It is not a de Polignac number, because 7220911153 - 2¹³ = 7220902961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7220911123) 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, 933198 + ... + 940903.

It is an arithmetic number, because the mean of its divisors is an integer number (1805697277).

Almost surely, 2^7220911153 is an apocalyptic number.

It is an amenable number.

7220911153 is a deficient number, since it is larger than the sum of its proper divisors (1877955).

7220911153 is a wasteful number, since it uses less digits than its factorization.

7220911153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877954.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 7220911153 is about 84975.9445549151. The cubic root of 7220911153 is about 1932.8463601451.

The spelling of 7220911153 in words is "seven billion, two hundred twenty million, nine hundred eleven thousand, one hundred fifty-three".