1323785522 has 8 divisors (see below), whose sum is σ = 2018230572. Its totient is φ = 651042000.

The previous prime is 1323785521. The next prime is 1323785527. The reversal of 1323785522 is 2255873231.

It can be written as a sum of positive squares in 2 ways, for example, as 1089726121 + 234059401 = 33011^2 + 15299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1323785521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5425229 + ... + 5425472.

Almost surely, 2^1323785522 is an apocalyptic number.

1323785522 is a deficient number, since it is larger than the sum of its proper divisors (694445050).

1323785522 is a wasteful number, since it uses less digits than its factorization.

1323785522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10850764.

The product of its digits is 100800, while the sum is 38.

The square root of 1323785522 is about 36383.8634836929. The cubic root of 1323785522 is about 1098.0089387385.

The spelling of 1323785522 in words is "one billion, three hundred twenty-three million, seven hundred eighty-five thousand, five hundred twenty-two".