1168097281 has 16 divisors (see below), whose sum is σ = 1285099200. Its totient is φ = 1055141568.

The previous prime is 1168097243. The next prime is 1168097291. The reversal of 1168097281 is 1827908611.

It is a happy number.

It is not a de Polignac number, because 1168097281 - 2⁷ = 1168097153 is a prime.

It is a super-2 number, since 2×1168097281² = 2728902515759185922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168097291) 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, 170755 + ... + 177463.

It is an arithmetic number, because the mean of its divisors is an integer number (80318700).

Almost surely, 2^1168097281 is an apocalyptic number.

It is an amenable number.

1168097281 is a deficient number, since it is larger than the sum of its proper divisors (117001919).

1168097281 is a wasteful number, since it uses less digits than its factorization.

1168097281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008.

The product of its (nonzero) digits is 48384, while the sum is 43.

The square root of 1168097281 is about 34177.4381866166. The cubic root of 1168097281 is about 1053.1567226351.

The spelling of 1168097281 in words is "one billion, one hundred sixty-eight million, ninety-seven thousand, two hundred eighty-one".