219480923 has 2 divisors, whose sum is σ = 219480924. Its totient is φ = 219480922.

The previous prime is 219480907. The next prime is 219480941. The reversal of 219480923 is 329084912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 219480923 - 2⁴ = 219480907 is a prime.

It is not a weakly prime, because it can be changed into another prime (219480223) 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, 109740461 + 109740462.

It is an arithmetic number, because the mean of its divisors is an integer number (109740462).

Almost surely, 2^219480923 is an apocalyptic number.

219480923 is a deficient number, since it is larger than the sum of its proper divisors (1).

219480923 is an equidigital number, since it uses as much as digits as its factorization.

219480923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 219480923 is about 14814.8885584739. Note that the first 3 decimals coincide. The cubic root of 219480923 is about 603.2059165081.

The spelling of 219480923 in words is "two hundred nineteen million, four hundred eighty thousand, nine hundred twenty-three".