220474147 has 2 divisors, whose sum is σ = 220474148. Its totient is φ = 220474146.

The previous prime is 220474123. The next prime is 220474151. The reversal of 220474147 is 741474022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220474147 is a prime.

It is not a weakly prime, because it can be changed into another prime (220474447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110237073 + 110237074.

It is an arithmetic number, because the mean of its divisors is an integer number (110237074).

Almost surely, 2^220474147 is an apocalyptic number.

220474147 is a deficient number, since it is larger than the sum of its proper divisors (1).

220474147 is an equidigital number, since it uses as much as digits as its factorization.

220474147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 220474147 is about 14848.3718636085. The cubic root of 220474147 is about 604.1144497167.

The spelling of 220474147 in words is "two hundred twenty million, four hundred seventy-four thousand, one hundred forty-seven".