1323540441 has 12 divisors (see below), whose sum is σ = 1914189732. Its totient is φ = 881248416.

The previous prime is 1323540419. The next prime is 1323540467. The reversal of 1323540441 is 1440453231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 686230416 + 637310025 = 26196^2 + 25245^2 .

It is not a de Polignac number, because 1323540441 - 2⁵ = 1323540409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323540401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85086 + ... + 99431.

It is an arithmetic number, because the mean of its divisors is an integer number (159515811).

Almost surely, 2^1323540441 is an apocalyptic number.

It is an amenable number.

1323540441 is a deficient number, since it is larger than the sum of its proper divisors (590649291).

1323540441 is a wasteful number, since it uses less digits than its factorization.

1323540441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185320 (or 185317 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1323540441 is about 36380.4953374744. The cubic root of 1323540441 is about 1097.9411740509.

Adding to 1323540441 its reverse (1440453231), we get a palindrome (2763993672).

The spelling of 1323540441 in words is "one billion, three hundred twenty-three million, five hundred forty thousand, four hundred forty-one".