1165171146 has 16 divisors (see below), whose sum is σ = 2405515008. Its totient is φ = 375861600.

The previous prime is 1165171103. The next prime is 1165171153. The reversal of 1165171146 is 6411715611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3131995 + ... + 3132366.

It is an arithmetic number, because the mean of its divisors is an integer number (150344688).

Almost surely, 2^1165171146 is an apocalyptic number.

1165171146 is an abundant number, since it is smaller than the sum of its proper divisors (1240343862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165171146 is a wasteful number, since it uses less digits than its factorization.

1165171146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264397.

The product of its digits is 5040, while the sum is 33.

The square root of 1165171146 is about 34134.6033520239. The cubic root of 1165171146 is about 1052.2765860144.

Adding to 1165171146 its reverse (6411715611), we get a palindrome (7576886757).

The spelling of 1165171146 in words is "one billion, one hundred sixty-five million, one hundred seventy-one thousand, one hundred forty-six".