1150316891 has 4 divisors (see below), whose sum is σ = 1150893192. Its totient is φ = 1149740592.

The previous prime is 1150316887. The next prime is 1150316911. The reversal of 1150316891 is 1986130511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1150316891 - 2² = 1150316887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150316821) 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 3 ways as a sum of consecutive naturals, for example, 285146 + ... + 289151.

It is an arithmetic number, because the mean of its divisors is an integer number (287723298).

Almost surely, 2^1150316891 is an apocalyptic number.

1150316891 is a deficient number, since it is larger than the sum of its proper divisors (576301).

1150316891 is an equidigital number, since it uses as much as digits as its factorization.

1150316891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576300.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 1150316891 is about 33916.3218966916. The cubic root of 1150316891 is about 1047.7857772005.

The spelling of 1150316891 in words is "one billion, one hundred fifty million, three hundred sixteen thousand, eight hundred ninety-one".