221434483 has 2 divisors, whose sum is σ = 221434484. Its totient is φ = 221434482.

The previous prime is 221434471. The next prime is 221434487. The reversal of 221434483 is 384434122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221434483 - 2¹³ = 221426291 is a prime.

It is a super-2 number, since 2×221434483² = 98066460522954578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221434487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110717241 + 110717242.

It is an arithmetic number, because the mean of its divisors is an integer number (110717242).

Almost surely, 2^221434483 is an apocalyptic number.

221434483 is a deficient number, since it is larger than the sum of its proper divisors (1).

221434483 is an equidigital number, since it uses as much as digits as its factorization.

221434483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 221434483 is about 14880.6748166876. The cubic root of 221434483 is about 604.9903083392.

The spelling of 221434483 in words is "two hundred twenty-one million, four hundred thirty-four thousand, four hundred eighty-three".