148000813 has 2 divisors, whose sum is σ = 148000814. Its totient is φ = 148000812.

The previous prime is 148000799. The next prime is 148000817. The reversal of 148000813 is 318000841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106874244 + 41126569 = 10338^2 + 6413^2 .

It is an emirp because it is prime and its reverse (318000841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 148000813 - 2⁹ = 148000301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148000817) 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, 74000406 + 74000407.

It is an arithmetic number, because the mean of its divisors is an integer number (74000407).

Almost surely, 2^148000813 is an apocalyptic number.

It is an amenable number.

148000813 is a deficient number, since it is larger than the sum of its proper divisors (1).

148000813 is an equidigital number, since it uses as much as digits as its factorization.

148000813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 148000813 is about 12165.5584746447. The cubic root of 148000813 is about 528.9582158313.

The spelling of 148000813 in words is "one hundred forty-eight million, eight hundred thirteen", and thus it is an aban number.