1166125313 has 2 divisors, whose sum is σ = 1166125314. Its totient is φ = 1166125312.

The previous prime is 1166125307. The next prime is 1166125327. The reversal of 1166125313 is 3135216611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1036324864 + 129800449 = 32192^2 + 11393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166125313 - 2⁴ = 1166125297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1166125333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583062656 + 583062657.

It is an arithmetic number, because the mean of its divisors is an integer number (583062657).

Almost surely, 2^1166125313 is an apocalyptic number.

It is an amenable number.

1166125313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166125313 is an equidigital number, since it uses as much as digits as its factorization.

1166125313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 1166125313 is about 34148.5770274546. The cubic root of 1166125313 is about 1052.5637465880.

The spelling of 1166125313 in words is "one billion, one hundred sixty-six million, one hundred twenty-five thousand, three hundred thirteen".