1172242529 has 2 divisors, whose sum is σ = 1172242530. Its totient is φ = 1172242528.

The previous prime is 1172242517. The next prime is 1172242543. The reversal of 1172242529 is 9252422711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 827137600 + 345104929 = 28760^2 + 18577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172242529 - 2⁸ = 1172242273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1172242549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586121264 + 586121265.

It is an arithmetic number, because the mean of its divisors is an integer number (586121265).

Almost surely, 2^1172242529 is an apocalyptic number.

It is an amenable number.

1172242529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172242529 is an equidigital number, since it uses as much as digits as its factorization.

1172242529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 1172242529 is about 34238.0275278819. The cubic root of 1172242529 is about 1054.4010373386.

The spelling of 1172242529 in words is "one billion, one hundred seventy-two million, two hundred forty-two thousand, five hundred twenty-nine".