1185012997 has 8 divisors (see below), whose sum is σ = 1364965376. Its totient is φ = 1007726832.

The previous prime is 1185012991. The next prime is 1185013001. The reversal of 1185012997 is 7992105811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1185012997 - 2¹⁵ = 1184980229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185012991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665598 + ... + 667375.

It is an arithmetic number, because the mean of its divisors is an integer number (170620672).

Almost surely, 2^1185012997 is an apocalyptic number.

It is an amenable number.

1185012997 is a deficient number, since it is larger than the sum of its proper divisors (179952379).

1185012997 is a wasteful number, since it uses less digits than its factorization.

1185012997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333107.

The product of its (nonzero) digits is 45360, while the sum is 43.

The square root of 1185012997 is about 34424.0177347154. The cubic root of 1185012997 is about 1058.2161158018.

The spelling of 1185012997 in words is "one billion, one hundred eighty-five million, twelve thousand, nine hundred ninety-seven".