220264453 has 4 divisors (see below), whose sum is σ = 221210028. Its totient is φ = 219318880.

The previous prime is 220264439. The next prime is 220264469. The reversal of 220264453 is 354462022.

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 149401729 + 70862724 = 12223^2 + 8418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220264453 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 (220264493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472438 + ... + 472903.

It is an arithmetic number, because the mean of its divisors is an integer number (55302507).

Almost surely, 2^220264453 is an apocalyptic number.

It is an amenable number.

220264453 is a deficient number, since it is larger than the sum of its proper divisors (945575).

220264453 is an equidigital number, since it uses as much as digits as its factorization.

220264453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945574.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 220264453 is about 14841.3090056100. The cubic root of 220264453 is about 603.9228635979.

The spelling of 220264453 in words is "two hundred twenty million, two hundred sixty-four thousand, four hundred fifty-three".