146533813 has 2 divisors, whose sum is σ = 146533814. Its totient is φ = 146533812.

The previous prime is 146533787. The next prime is 146533841. The reversal of 146533813 is 318335641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146095569 + 438244 = 12087^2 + 662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146533813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146533843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73266906 + 73266907.

It is an arithmetic number, because the mean of its divisors is an integer number (73266907).

Almost surely, 2^146533813 is an apocalyptic number.

It is an amenable number.

146533813 is a deficient number, since it is larger than the sum of its proper divisors (1).

146533813 is an equidigital number, since it uses as much as digits as its factorization.

146533813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 146533813 is about 12105.1151584774. The cubic root of 146533813 is about 527.2047124309.

The spelling of 146533813 in words is "one hundred forty-six million, five hundred thirty-three thousand, eight hundred thirteen".