1429825217 has 2 divisors, whose sum is σ = 1429825218. Its totient is φ = 1429825216.

The previous prime is 1429825181. The next prime is 1429825223. The reversal of 1429825217 is 7125289241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1373740096 + 56085121 = 37064^2 + 7489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429825217 - 2¹⁴ = 1429808833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1429825417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714912608 + 714912609.

It is an arithmetic number, because the mean of its divisors is an integer number (714912609).

Almost surely, 2^1429825217 is an apocalyptic number.

It is an amenable number.

1429825217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429825217 is an equidigital number, since it uses as much as digits as its factorization.

1429825217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 41.

The square root of 1429825217 is about 37813.0297252151. The cubic root of 1429825217 is about 1126.5772686304.

The spelling of 1429825217 in words is "one billion, four hundred twenty-nine million, eight hundred twenty-five thousand, two hundred seventeen".