1162816993 has 8 divisors (see below), whose sum is σ = 1255392936. Its totient is φ = 1070688000.

The previous prime is 1162816981. The next prime is 1162816997. The reversal of 1162816993 is 3996182611.

It can be written as a sum of positive squares in 4 ways, for example, as 249387264 + 913429729 = 15792^2 + 30223^2 .

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 1162816993 - 2⁹ = 1162816481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1162816997) 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, 106318 + ... + 116743.

It is an arithmetic number, because the mean of its divisors is an integer number (156924117).

Almost surely, 2^1162816993 is an apocalyptic number.

1162816993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1162816993 is a deficient number, since it is larger than the sum of its proper divisors (92575943).

1162816993 is a wasteful number, since it uses less digits than its factorization.

1162816993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223475.

The product of its digits is 139968, while the sum is 46.

The square root of 1162816993 is about 34100.1025365027. The cubic root of 1162816993 is about 1051.5674225809.

The spelling of 1162816993 in words is "one billion, one hundred sixty-two million, eight hundred sixteen thousand, nine hundred ninety-three".