363560221 has 8 divisors (see below), whose sum is σ = 368940024. Its totient is φ = 358191360.

The previous prime is 363560207. The next prime is 363560237. The reversal of 363560221 is 122065363.

It can be written as a sum of positive squares in 4 ways, for example, as 221592996 + 141967225 = 14886^2 + 11915^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-363560221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 363560221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363560201) 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, 84105 + ... + 88321.

It is an arithmetic number, because the mean of its divisors is an integer number (46117503).

Almost surely, 2^363560221 is an apocalyptic number.

It is an amenable number.

363560221 is a deficient number, since it is larger than the sum of its proper divisors (5379803).

363560221 is a wasteful number, since it uses less digits than its factorization.

363560221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 363560221 is about 19067.2552036207. The cubic root of 363560221 is about 713.7160330131.

The spelling of 363560221 in words is "three hundred sixty-three million, five hundred sixty thousand, two hundred twenty-one".