1161500003 has 4 divisors (see below), whose sum is σ = 1169192208. Its totient is φ = 1153807800.

The previous prime is 1161499991. The next prime is 1161500009. The reversal of 1161500003 is 3000051611.

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 1161500003 - 2⁶ = 1161499939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161500009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3845876 + ... + 3846177.

It is an arithmetic number, because the mean of its divisors is an integer number (292298052).

Almost surely, 2^1161500003 is an apocalyptic number.

1161500003 is a deficient number, since it is larger than the sum of its proper divisors (7692205).

1161500003 is an equidigital number, since it uses as much as digits as its factorization.

1161500003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692204.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1161500003 is about 34080.7864199170. The cubic root of 1161500003 is about 1051.1702758364.

Adding to 1161500003 its reverse (3000051611), we get a palindrome (4161551614).

The spelling of 1161500003 in words is "one billion, one hundred sixty-one million, five hundred thousand, three".