1146969813 has 16 divisors (see below), whose sum is σ = 1670630976. Its totient is φ = 694170240.

The previous prime is 1146969809. The next prime is 1146969829. The reversal of 1146969813 is 3189696411.

It is a happy number.

It is not a de Polignac number, because 1146969813 - 2² = 1146969809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146969833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481 + ... + 47897.

It is an arithmetic number, because the mean of its divisors is an integer number (104414436).

Almost surely, 2^1146969813 is an apocalyptic number.

It is an amenable number.

1146969813 is a deficient number, since it is larger than the sum of its proper divisors (523661163).

1146969813 is a wasteful number, since it uses less digits than its factorization.

1146969813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48164.

The product of its digits is 279936, while the sum is 48.

The square root of 1146969813 is about 33866.9427761054. The cubic root of 1146969813 is about 1046.7685422338.

The spelling of 1146969813 in words is "one billion, one hundred forty-six million, nine hundred sixty-nine thousand, eight hundred thirteen".