1172202005 has 16 divisors (see below), whose sum is σ = 1519215600. Its totient is φ = 863129088.

The previous prime is 1172201993. The next prime is 1172202077. The reversal of 1172202005 is 5002022711.

It can be written as a sum of positive squares in 8 ways, for example, as 44182609 + 1128019396 = 6647^2 + 33586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172202005 - 2¹² = 1172197909 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3152 + ... + 48521.

It is an arithmetic number, because the mean of its divisors is an integer number (94950975).

Almost surely, 2^1172202005 is an apocalyptic number.

It is an amenable number.

1172202005 is a deficient number, since it is larger than the sum of its proper divisors (347013595).

1172202005 is a wasteful number, since it uses less digits than its factorization.

1172202005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52040.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1172202005 is about 34237.4357246567. The cubic root of 1172202005 is about 1054.3888871111.

Adding to 1172202005 its reverse (5002022711), we get a palindrome (6174224716).

The spelling of 1172202005 in words is "one billion, one hundred seventy-two million, two hundred two thousand, five".