221531483 has 2 divisors, whose sum is σ = 221531484. Its totient is φ = 221531482.

The previous prime is 221531449. The next prime is 221531501. The reversal of 221531483 is 384135122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221531483 - 2⁶ = 221531419 is a prime.

It is not a weakly prime, because it can be changed into another prime (221530483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110765741 + 110765742.

It is an arithmetic number, because the mean of its divisors is an integer number (110765742).

Almost surely, 2^221531483 is an apocalyptic number.

221531483 is a deficient number, since it is larger than the sum of its proper divisors (1).

221531483 is an equidigital number, since it uses as much as digits as its factorization.

221531483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 221531483 is about 14883.9337206264. The cubic root of 221531483 is about 605.0786346803.

The spelling of 221531483 in words is "two hundred twenty-one million, five hundred thirty-one thousand, four hundred eighty-three".