1146820979 has 8 divisors (see below), whose sum is σ = 1193229360. Its totient is φ = 1100870176.

The previous prime is 1146820967. The next prime is 1146820999. The reversal of 1146820979 is 9790286411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1146820979 - 2²⁰ = 1145772403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1146820919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109277 + ... + 119310.

It is an arithmetic number, because the mean of its divisors is an integer number (149153670).

Almost surely, 2^1146820979 is an apocalyptic number.

1146820979 is a deficient number, since it is larger than the sum of its proper divisors (46408381).

1146820979 is a wasteful number, since it uses less digits than its factorization.

1146820979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228789.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1146820979 is about 33864.7453703701. The cubic root of 1146820979 is about 1046.7232630739.

The spelling of 1146820979 in words is "one billion, one hundred forty-six million, eight hundred twenty thousand, nine hundred seventy-nine".