1170172105 has 8 divisors (see below), whose sum is σ = 1404921672. Its totient is φ = 935660928.

The previous prime is 1170172093. The next prime is 1170172109. The reversal of 1170172105 is 5012710711.

It can be written as a sum of positive squares in 4 ways, for example, as 83612736 + 1086559369 = 9144^2 + 32963^2 .

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 1170172105 - 2⁹ = 1170171593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1170172105.

It is not an unprimeable number, because it can be changed into a prime (1170172109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48612 + ... + 68581.

It is an arithmetic number, because the mean of its divisors is an integer number (175615209).

Almost surely, 2^1170172105 is an apocalyptic number.

It is an amenable number.

1170172105 is a deficient number, since it is larger than the sum of its proper divisors (234749567).

1170172105 is a wasteful number, since it uses less digits than its factorization.

1170172105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119195.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 1170172105 is about 34207.7784283049. The cubic root of 1170172105 is about 1053.7799077042.

Adding to 1170172105 its reverse (5012710711), we get a palindrome (6182882816).

The spelling of 1170172105 in words is "one billion, one hundred seventy million, one hundred seventy-two thousand, one hundred five".