1220032529 has 2 divisors, whose sum is σ = 1220032530. Its totient is φ = 1220032528.

The previous prime is 1220032501. The next prime is 1220032543. The reversal of 1220032529 is 9252300221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930250000 + 289782529 = 30500^2 + 17023^2 .

It is an emirp because it is prime and its reverse (9252300221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220032529 - 2⁸ = 1220032273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220032498 and 1220032507.

It is not a weakly prime, because it can be changed into another prime (1220032549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610016264 + 610016265.

It is an arithmetic number, because the mean of its divisors is an integer number (610016265).

Almost surely, 2^1220032529 is an apocalyptic number.

It is an amenable number.

1220032529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220032529 is an equidigital number, since it uses as much as digits as its factorization.

1220032529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1220032529 is about 34928.9640413225. The cubic root of 1220032529 is about 1068.5392268414.

The spelling of 1220032529 in words is "one billion, two hundred twenty million, thirty-two thousand, five hundred twenty-nine".