1323528465 has 24 divisors (see below), whose sum is σ = 2463384960. Its totient is φ = 605041248.

The previous prime is 1323528461. The next prime is 1323528469. The reversal of 1323528465 is 5648253231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1323528461) and next prime (1323528469).

It is not a de Polignac number, because 1323528465 - 2² = 1323528461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323528461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 899625 + ... + 901094.

It is an arithmetic number, because the mean of its divisors is an integer number (102641040).

Almost surely, 2^1323528465 is an apocalyptic number.

1323528465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323528465 is a deficient number, since it is larger than the sum of its proper divisors (1139856495).

1323528465 is a wasteful number, since it uses less digits than its factorization.

1323528465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800741 (or 1800734 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 1323528465 is about 36380.3307434113. The cubic root of 1323528465 is about 1097.9378624827.

The spelling of 1323528465 in words is "one billion, three hundred twenty-three million, five hundred twenty-eight thousand, four hundred sixty-five".