146836813 has 2 divisors, whose sum is σ = 146836814. Its totient is φ = 146836812.

The previous prime is 146836783. The next prime is 146836817. The reversal of 146836813 is 318638641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111576969 + 35259844 = 10563^2 + 5938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146836813 is a prime.

It is a super-2 number, since 2×146836813² = 43122099303993938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146836817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73418406 + 73418407.

It is an arithmetic number, because the mean of its divisors is an integer number (73418407).

Almost surely, 2^146836813 is an apocalyptic number.

It is an amenable number.

146836813 is a deficient number, since it is larger than the sum of its proper divisors (1).

146836813 is an equidigital number, since it uses as much as digits as its factorization.

146836813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 146836813 is about 12117.6240657977. The cubic root of 146836813 is about 527.5678437481.

The spelling of 146836813 in words is "one hundred forty-six million, eight hundred thirty-six thousand, eight hundred thirteen".