220453245 has 56 divisors (see below), whose sum is σ = 409638912. Its totient is φ = 113724000.

The previous prime is 220453243. The next prime is 220453271. The reversal of 220453245 is 542354022.

It is a happy number.

It is not a de Polignac number, because 220453245 - 2¹ = 220453243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220453241) 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 55 ways as a sum of consecutive naturals, for example, 112020 + ... + 113970.

Almost surely, 2^220453245 is an apocalyptic number.

It is an amenable number.

220453245 is a deficient number, since it is larger than the sum of its proper divisors (189185667).

220453245 is an equidigital number, since it uses as much as digits as its factorization.

220453245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 220453245 is about 14847.6679987128. The cubic root of 220453245 is about 604.0953581370.

The spelling of 220453245 in words is "two hundred twenty million, four hundred fifty-three thousand, two hundred forty-five".