1197287085 has 16 divisors (see below), whose sum is σ = 1917910080. Its totient is φ = 637802880.

The previous prime is 1197287051. The next prime is 1197287099. The reversal of 1197287085 is 5807827911.

It is a happy number.

It is not a de Polignac number, because 1197287085 - 2²² = 1193092781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33576 + ... + 59345.

It is an arithmetic number, because the mean of its divisors is an integer number (119869380).

Almost surely, 2^1197287085 is an apocalyptic number.

1197287085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1197287085 is a deficient number, since it is larger than the sum of its proper divisors (720622995).

1197287085 is an equidigital number, since it uses as much as digits as its factorization.

1197287085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93788.

The product of its (nonzero) digits is 282240, while the sum is 48.

The square root of 1197287085 is about 34601.8364397036. The cubic root of 1197287085 is about 1061.8571587315.

The spelling of 1197287085 in words is "one billion, one hundred ninety-seven million, two hundred eighty-seven thousand, eighty-five".