220241479 has 2 divisors, whose sum is σ = 220241480. Its totient is φ = 220241478.

The previous prime is 220241449. The next prime is 220241531. The reversal of 220241479 is 974142022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220241479 - 2²¹ = 218144327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220241479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220241419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110120739 + 110120740.

It is an arithmetic number, because the mean of its divisors is an integer number (110120740).

Almost surely, 2^220241479 is an apocalyptic number.

220241479 is a deficient number, since it is larger than the sum of its proper divisors (1).

220241479 is an equidigital number, since it uses as much as digits as its factorization.

220241479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 220241479 is about 14840.5349970949. The cubic root of 220241479 is about 603.9018661014.

It can be divided in two parts, 2202 and 41479, that added together give a square (43681 = 209²).

The spelling of 220241479 in words is "two hundred twenty million, two hundred forty-one thousand, four hundred seventy-nine".