1164171042 has 40 divisors (see below), whose sum is σ = 2625936192. Its totient is φ = 385479000.

The previous prime is 1164171037. The next prime is 1164171049. The reversal of 1164171042 is 2401714611.

1164171042 is a `hidden beast` number, since 1 + 1 + 641 + 7 + 10 + 4 + 2 = 666.

It is a super-3 number, since 3×1164171042³ (a number of 28 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1164170997 and 1164171015.

It is not an unprimeable number, because it can be changed into a prime (1164171049) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 667 + ... + 48257.

Almost surely, 2^1164171042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1164171042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312968096).

1164171042 is an abundant number, since it is smaller than the sum of its proper divisors (1461765150).

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

1164171042 is a wasteful number, since it uses less digits than its factorization.

1164171042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47756 (or 47747 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1164171042 is about 34119.9507912893. The cubic root of 1164171042 is about 1051.9754321827.

Adding to 1164171042 its reverse (2401714611), we get a palindrome (3565885653).

The spelling of 1164171042 in words is "one billion, one hundred sixty-four million, one hundred seventy-one thousand, forty-two".