1322555473 has 2 divisors, whose sum is σ = 1322555474. Its totient is φ = 1322555472.

The previous prime is 1322555471. The next prime is 1322555539. The reversal of 1322555473 is 3745552231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1296576064 + 25979409 = 36008^2 + 5097^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322555473 - 2¹ = 1322555471 is a prime.

Together with 1322555471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1322555471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661277736 + 661277737.

It is an arithmetic number, because the mean of its divisors is an integer number (661277737).

Almost surely, 2^1322555473 is an apocalyptic number.

It is an amenable number.

1322555473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322555473 is an equidigital number, since it uses as much as digits as its factorization.

1322555473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 37.

The square root of 1322555473 is about 36366.9557840631. The cubic root of 1322555473 is about 1097.6687468384.

The spelling of 1322555473 in words is "one billion, three hundred twenty-two million, five hundred fifty-five thousand, four hundred seventy-three".