1172032245 has 24 divisors (see below), whose sum is σ = 2101577400. Its totient is φ = 603528576.

The previous prime is 1172032171. The next prime is 1172032259. The reversal of 1172032245 is 5422302711.

It can be written as a sum of positive squares in 4 ways, for example, as 133956 + 1171898289 = 366^2 + 34233^2 .

It is not a de Polignac number, because 1172032245 - 2⁸ = 1172031989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447750 + ... + 450359.

It is an arithmetic number, because the mean of its divisors is an integer number (87565725).

Almost surely, 2^1172032245 is an apocalyptic number.

1172032245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1172032245 is a deficient number, since it is larger than the sum of its proper divisors (929545155).

1172032245 is a wasteful number, since it uses less digits than its factorization.

1172032245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898149 (or 898146 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1172032245 is about 34234.9564772617. The cubic root of 1172032245 is about 1054.3379852762.

Adding to 1172032245 its reverse (5422302711), we get a palindrome (6594334956).

The spelling of 1172032245 in words is "one billion, one hundred seventy-two million, thirty-two thousand, two hundred forty-five".