1163817493 has 16 divisors (see below), whose sum is σ = 1199784960. Its totient is φ = 1128582000.

The previous prime is 1163817463. The next prime is 1163817509. The reversal of 1163817493 is 3947183611.

It is a cyclic number.

It is not a de Polignac number, because 1163817493 - 2⁵ = 1163817461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163817443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1106818 + ... + 1107868.

It is an arithmetic number, because the mean of its divisors is an integer number (74986560).

Almost surely, 2^1163817493 is an apocalyptic number.

It is an amenable number.

1163817493 is a deficient number, since it is larger than the sum of its proper divisors (35967467).

1163817493 is a wasteful number, since it uses less digits than its factorization.

1163817493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its digits is 108864, while the sum is 43.

The square root of 1163817493 is about 34114.7694261591. The cubic root of 1163817493 is about 1051.8689293565.

The spelling of 1163817493 in words is "one billion, one hundred sixty-three million, eight hundred seventeen thousand, four hundred ninety-three".