1165120347 has 8 divisors (see below), whose sum is σ = 1644875856. Its totient is φ = 731055872.

The previous prime is 1165120309. The next prime is 1165120351. The reversal of 1165120347 is 7430215611.

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

It is a cyclic number.

It is not a de Polignac number, because 1165120347 - 2¹¹ = 1165118299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165120357) 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, 11422698 + ... + 11422799.

It is an arithmetic number, because the mean of its divisors is an integer number (205609482).

Almost surely, 2^1165120347 is an apocalyptic number.

1165120347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1165120347 is a deficient number, since it is larger than the sum of its proper divisors (479755509).

1165120347 is a wasteful number, since it uses less digits than its factorization.

1165120347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22845517.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1165120347 is about 34133.8592456230. The cubic root of 1165120347 is about 1052.2612934469.

Adding to 1165120347 its reverse (7430215611), we get a palindrome (8595335958).

The spelling of 1165120347 in words is "one billion, one hundred sixty-five million, one hundred twenty thousand, three hundred forty-seven".