1170243387 has 6 divisors (see below), whose sum is σ = 1690351572. Its totient is φ = 780162252.

The previous prime is 1170243379. The next prime is 1170243391. The reversal of 1170243387 is 7833420711.

It is not a de Polignac number, because 1170243387 - 2³ = 1170243379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1170243317) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 65013513 + ... + 65013530.

It is an arithmetic number, because the mean of its divisors is an integer number (281725262).

Almost surely, 2^1170243387 is an apocalyptic number.

1170243387 is a deficient number, since it is larger than the sum of its proper divisors (520108185).

1170243387 is a wasteful number, since it uses less digits than its factorization.

1170243387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130027049 (or 130027046 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1170243387 is about 34208.8203099727. The cubic root of 1170243387 is about 1053.8013045608.

The spelling of 1170243387 in words is "one billion, one hundred seventy million, two hundred forty-three thousand, three hundred eighty-seven".