1146979993 has 2 divisors, whose sum is σ = 1146979994. Its totient is φ = 1146979992.

The previous prime is 1146979931. The next prime is 1146979997. The reversal of 1146979993 is 3999796411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 778800649 + 368179344 = 27907^2 + 19188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146979993 - 2¹³ = 1146971801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146979997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573489996 + 573489997.

It is an arithmetic number, because the mean of its divisors is an integer number (573489997).

Almost surely, 2^1146979993 is an apocalyptic number.

It is an amenable number.

1146979993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146979993 is an equidigital number, since it uses as much as digits as its factorization.

1146979993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3306744, while the sum is 58.

The square root of 1146979993 is about 33867.0930698222. The cubic root of 1146979993 is about 1046.7716391104.

The spelling of 1146979993 in words is "one billion, one hundred forty-six million, nine hundred seventy-nine thousand, nine hundred ninety-three".