1158879973 has 2 divisors, whose sum is σ = 1158879974. Its totient is φ = 1158879972.

The previous prime is 1158879961. The next prime is 1158879983. The reversal of 1158879973 is 3799788511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936482404 + 222397569 = 30602^2 + 14913^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158879973 - 2⁵ = 1158879941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158879983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579439986 + 579439987.

It is an arithmetic number, because the mean of its divisors is an integer number (579439987).

Almost surely, 2^1158879973 is an apocalyptic number.

It is an amenable number.

1158879973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158879973 is an equidigital number, since it uses as much as digits as its factorization.

1158879973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 58.

The square root of 1158879973 is about 34042.3261984254. The cubic root of 1158879973 is about 1050.3792954711.

The spelling of 1158879973 in words is "one billion, one hundred fifty-eight million, eight hundred seventy-nine thousand, nine hundred seventy-three".