1168987293 has 24 divisors (see below), whose sum is σ = 1818754080. Its totient is φ = 721133280.

The previous prime is 1168987291. The next prime is 1168987301. The reversal of 1168987293 is 3927898611.

It is not a de Polignac number, because 1168987293 - 2¹ = 1168987291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168987291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72138 + ... + 86843.

It is an arithmetic number, because the mean of its divisors is an integer number (75781420).

Almost surely, 2^1168987293 is an apocalyptic number.

It is an amenable number.

1168987293 is a deficient number, since it is larger than the sum of its proper divisors (649766787).

1168987293 is a wasteful number, since it uses less digits than its factorization.

1168987293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159049 (or 159046 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1168987293 is about 34190.4561683520. The cubic root of 1168987293 is about 1053.4241330577.

The spelling of 1168987293 in words is "one billion, one hundred sixty-eight million, nine hundred eighty-seven thousand, two hundred ninety-three".