1161326097 has 24 divisors (see below), whose sum is σ = 1758120000. Its totient is φ = 737291808.

The previous prime is 1161326093. The next prime is 1161326129. The reversal of 1161326097 is 7906231611.

1161326097 is a `hidden beast` number, since 1 + 16 + 1 + 32 + 609 + 7 = 666.

It is not a de Polignac number, because 1161326097 - 2² = 1161326093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161326093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35154 + ... + 59652.

It is an arithmetic number, because the mean of its divisors is an integer number (73255000).

Almost surely, 2^1161326097 is an apocalyptic number.

It is an amenable number.

1161326097 is a deficient number, since it is larger than the sum of its proper divisors (596793903).

1161326097 is a wasteful number, since it uses less digits than its factorization.

1161326097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24757 (or 24754 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1161326097 is about 34078.2349454898. The cubic root of 1161326097 is about 1051.1178109370.

The spelling of 1161326097 in words is "one billion, one hundred sixty-one million, three hundred twenty-six thousand, ninety-seven".