1165231170 has 192 divisors, whose sum is σ = 3384291456. Its totient is φ = 287400960.

The previous prime is 1165231141. The next prime is 1165231181. The reversal of 1165231170 is 711325611.

1165231170 is a `hidden beast` number, since 1 + 1 + 652 + 3 + 1 + 1 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2767560 + ... + 2767980.

It is an arithmetic number, because the mean of its divisors is an integer number (17626518).

Almost surely, 2^1165231170 is an apocalyptic number.

1165231170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1165231170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1692145728).

1165231170 is an abundant number, since it is smaller than the sum of its proper divisors (2219060286).

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

1165231170 is a wasteful number, since it uses less digits than its factorization.

1165231170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1165231170 is about 34135.4825657995. The cubic root of 1165231170 is about 1052.2946551096.

Adding to 1165231170 its reverse (711325611), we get a palindrome (1876556781).

The spelling of 1165231170 in words is "one billion, one hundred sixty-five million, two hundred thirty-one thousand, one hundred seventy".