1172331005 has 8 divisors (see below), whose sum is σ = 1407168312. Its totient is φ = 937617408.

The previous prime is 1172330993. The next prime is 1172331019. The reversal of 1172331005 is 5001332711.

It can be written as a sum of positive squares in 4 ways, for example, as 227014489 + 945316516 = 15067^2 + 30746^2 .

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 1172331005 - 2⁶ = 1172330941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 8612 + ... + 49181.

It is an arithmetic number, because the mean of its divisors is an integer number (175896039).

Almost surely, 2^1172331005 is an apocalyptic number.

It is an amenable number.

1172331005 is a deficient number, since it is larger than the sum of its proper divisors (234837307).

1172331005 is an equidigital number, since it uses as much as digits as its factorization.

1172331005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61855.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1172331005 is about 34239.3195755990. The cubic root of 1172331005 is about 1054.4275639423.

Adding to 1172331005 its reverse (5001332711), we get a palindrome (6173663716).

The spelling of 1172331005 in words is "one billion, one hundred seventy-two million, three hundred thirty-one thousand, five".