7045221353 has 8 divisors (see below), whose sum is σ = 7063365768. Its totient is φ = 7027098624.

The previous prime is 7045221349. The next prime is 7045221373. The reversal of 7045221353 is 3531225407.

It can be written as a sum of positive squares in 4 ways, for example, as 4173547609 + 2871673744 = 64603^2 + 53588^2 .

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 7045221353 - 2² = 7045221349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7045221373) 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, 787775 + ... + 796667.

It is an arithmetic number, because the mean of its divisors is an integer number (882920721).

Almost surely, 2^7045221353 is an apocalyptic number.

It is an amenable number.

7045221353 is a deficient number, since it is larger than the sum of its proper divisors (18144415).

7045221353 is a wasteful number, since it uses less digits than its factorization.

7045221353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10843.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 7045221353 is about 83935.8168662223. The cubic root of 7045221353 is about 1917.0416457046.

The spelling of 7045221353 in words is "seven billion, forty-five million, two hundred twenty-one thousand, three hundred fifty-three".