146820563 has 2 divisors, whose sum is σ = 146820564. Its totient is φ = 146820562.

The previous prime is 146820559. The next prime is 146820617. The reversal of 146820563 is 365028641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146820563 - 2² = 146820559 is a prime.

It is not a weakly prime, because it can be changed into another prime (146820263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73410281 + 73410282.

It is an arithmetic number, because the mean of its divisors is an integer number (73410282).

Almost surely, 2^146820563 is an apocalyptic number.

146820563 is a deficient number, since it is larger than the sum of its proper divisors (1).

146820563 is an equidigital number, since it uses as much as digits as its factorization.

146820563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 146820563 is about 12116.9535362648. The cubic root of 146820563 is about 527.5483815675.

The spelling of 146820563 in words is "one hundred forty-six million, eight hundred twenty thousand, five hundred sixty-three".