1165906197 has 16 divisors (see below), whose sum is σ = 1727880000. Its totient is φ = 776995632.

The previous prime is 1165906193. The next prime is 1165906199. The reversal of 1165906197 is 7916095611.

It is not a de Polignac number, because 1165906197 - 2² = 1165906193 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165906193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95179 + ... + 106727.

It is an arithmetic number, because the mean of its divisors is an integer number (107992500).

Almost surely, 2^1165906197 is an apocalyptic number.

It is an amenable number.

1165906197 is a deficient number, since it is larger than the sum of its proper divisors (561973803).

1165906197 is a wasteful number, since it uses less digits than its factorization.

1165906197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15297 (or 15291 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 1165906197 is about 34145.3686024913. The cubic root of 1165906197 is about 1052.4978165654.

The spelling of 1165906197 in words is "one billion, one hundred sixty-five million, nine hundred six thousand, one hundred ninety-seven".