146219863 has 2 divisors, whose sum is σ = 146219864. Its totient is φ = 146219862.

The previous prime is 146219861. The next prime is 146219869. The reversal of 146219863 is 368912641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146219863 - 2¹ = 146219861 is a prime.

Together with 146219861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146219861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73109931 + 73109932.

It is an arithmetic number, because the mean of its divisors is an integer number (73109932).

Almost surely, 2^146219863 is an apocalyptic number.

146219863 is a deficient number, since it is larger than the sum of its proper divisors (1).

146219863 is an equidigital number, since it uses as much as digits as its factorization.

146219863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 146219863 is about 12092.1405466526. The cubic root of 146219863 is about 526.8279296178.

The spelling of 146219863 in words is "one hundred forty-six million, two hundred nineteen thousand, eight hundred sixty-three".