146564849 has 2 divisors, whose sum is σ = 146564850. Its totient is φ = 146564848.

The previous prime is 146564843. The next prime is 146564897. The reversal of 146564849 is 948465641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79210000 + 67354849 = 8900^2 + 8207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146564849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (146564843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73282424 + 73282425.

It is an arithmetic number, because the mean of its divisors is an integer number (73282425).

Almost surely, 2^146564849 is an apocalyptic number.

It is an amenable number.

146564849 is a deficient number, since it is larger than the sum of its proper divisors (1).

146564849 is an equidigital number, since it uses as much as digits as its factorization.

146564849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 47.

The square root of 146564849 is about 12106.3970280179. The cubic root of 146564849 is about 527.2419306221.

The spelling of 146564849 in words is "one hundred forty-six million, five hundred sixty-four thousand, eight hundred forty-nine".