1156366897 has 8 divisors (see below), whose sum is σ = 1349680896. Its totient is φ = 970082592.

The previous prime is 1156366859. The next prime is 1156366903. The reversal of 1156366897 is 7986636511.

It is a happy number.

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 1156366897 - 2¹¹ = 1156364849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156366817) 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 7 ways as a sum of consecutive naturals, for example, 1757068 + ... + 1757725.

It is an arithmetic number, because the mean of its divisors is an integer number (168710112).

Almost surely, 2^1156366897 is an apocalyptic number.

It is an amenable number.

1156366897 is a deficient number, since it is larger than the sum of its proper divisors (193313999).

1156366897 is an equidigital number, since it uses as much as digits as its factorization.

1156366897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514847.

The product of its digits is 1632960, while the sum is 52.

The square root of 1156366897 is about 34005.3951160694. The cubic root of 1156366897 is about 1049.6194832826.

The spelling of 1156366897 in words is "one billion, one hundred fifty-six million, three hundred sixty-six thousand, eight hundred ninety-seven".