1185162013 has 4 divisors (see below), whose sum is σ = 1354470880. Its totient is φ = 1015853148.

The previous prime is 1185162007. The next prime is 1185162019. The reversal of 1185162013 is 3102615811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1185162007) and next prime (1185162019).

It is a cyclic number.

It is not a de Polignac number, because 1185162013 - 2²⁵ = 1151607581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185162019) 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, 84654423 + ... + 84654436.

It is an arithmetic number, because the mean of its divisors is an integer number (338617720).

Almost surely, 2^1185162013 is an apocalyptic number.

It is an amenable number.

1185162013 is a deficient number, since it is larger than the sum of its proper divisors (169308867).

1185162013 is an equidigital number, since it uses as much as digits as its factorization.

1185162013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169308866.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1185162013 is about 34426.1820857324. The cubic root of 1185162013 is about 1058.2604710180.

Adding to 1185162013 its reverse (3102615811), we get a palindrome (4287777824).

The spelling of 1185162013 in words is "one billion, one hundred eighty-five million, one hundred sixty-two thousand, thirteen".