1061168993 has 4 divisors (see below), whose sum is σ = 1078565268. Its totient is φ = 1043772720.

The previous prime is 1061168987. The next prime is 1061169013. The reversal of 1061168993 is 3998611601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26388769 + 1034780224 = 5137^2 + 32168^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061168993 - 2²⁰ = 1060120417 is a prime.

It is a super-2 number, since 2×1061168993² = 2252159263409268098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061168903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8698046 + ... + 8698167.

It is an arithmetic number, because the mean of its divisors is an integer number (269641317).

Almost surely, 2^1061168993 is an apocalyptic number.

It is an amenable number.

1061168993 is a deficient number, since it is larger than the sum of its proper divisors (17396275).

1061168993 is an equidigital number, since it uses as much as digits as its factorization.

1061168993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396274.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1061168993 is about 32575.5889125584. The cubic root of 1061168993 is about 1019.9875024100.

The spelling of 1061168993 in words is "one billion, sixty-one million, one hundred sixty-eight thousand, nine hundred ninety-three".