1533222947 has 2 divisors, whose sum is σ = 1533222948. Its totient is φ = 1533222946.

The previous prime is 1533222937. The next prime is 1533222989. The reversal of 1533222947 is 7492223351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1533222947 - 2⁴ = 1533222931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1533222947.

It is not a weakly prime, because it can be changed into another prime (1533222937) 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, 766611473 + 766611474.

It is an arithmetic number, because the mean of its divisors is an integer number (766611474).

Almost surely, 2^1533222947 is an apocalyptic number.

1533222947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533222947 is an equidigital number, since it uses as much as digits as its factorization.

1533222947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 1533222947 is about 39156.3908832262. The cubic root of 1533222947 is about 1153.1038889377.

The spelling of 1533222947 in words is "one billion, five hundred thirty-three million, two hundred twenty-two thousand, nine hundred forty-seven".