1428571433 has 2 divisors, whose sum is σ = 1428571434. Its totient is φ = 1428571432.

The previous prime is 1428571429. The next prime is 1428571447. The reversal of 1428571433 is 3341758241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1290461929 + 138109504 = 35923^2 + 11752^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428571433 - 2² = 1428571429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1428571483) 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, 714285716 + 714285717.

It is an arithmetic number, because the mean of its divisors is an integer number (714285717).

Almost surely, 2^1428571433 is an apocalyptic number.

It is an amenable number.

1428571433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428571433 is an equidigital number, since it uses as much as digits as its factorization.

1428571433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 1428571433 is about 37796.4473595072. The cubic root of 1428571433 is about 1126.2478816074.

The spelling of 1428571433 in words is "one billion, four hundred twenty-eight million, five hundred seventy-one thousand, four hundred thirty-three".