146965813 has 6 divisors (see below), whose sum is σ = 151013634. Its totient is φ = 142922016.

The previous prime is 146965801. The next prime is 146965831. The reversal of 146965813 is 318569641.

It can be written as a sum of positive squares in 3 ways, for example, as 84603204 + 62362609 = 9198^2 + 7897^2 .

It is not a de Polignac number, because 146965813 - 2¹³ = 146957621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146965813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146965613) 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 in 5 ways as a sum of consecutive naturals, for example, 72745 + ... + 74737.

It is an arithmetic number, because the mean of its divisors is an integer number (25168939).

Almost surely, 2^146965813 is an apocalyptic number.

It is an amenable number.

146965813 is a deficient number, since it is larger than the sum of its proper divisors (4047821).

146965813 is an frugal number, since it uses more digits than its factorization.

146965813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 2030 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 146965813 is about 12122.9457228844. The cubic root of 146965813 is about 527.7222926006.

The spelling of 146965813 in words is "one hundred forty-six million, nine hundred sixty-five thousand, eight hundred thirteen".