1323154965 has 192 divisors, whose sum is σ = 2707326720. Its totient is φ = 547430400.

The previous prime is 1323154949. The next prime is 1323154967. The reversal of 1323154965 is 5694513231.

It is not a de Polignac number, because 1323154965 - 2⁴ = 1323154949 is a prime.

It is a super-2 number, since 2×1323154965² = 3501478122808302450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323154967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 21691035 + ... + 21691095.

It is an arithmetic number, because the mean of its divisors is an integer number (14100660).

Almost surely, 2^1323154965 is an apocalyptic number.

1323154965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323154965 is an abundant number, since it is smaller than the sum of its proper divisors (1384171755).

1323154965 is a wasteful number, since it uses less digits than its factorization.

1323154965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 153 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 1323154965 is about 36375.1971128680. The cubic root of 1323154965 is about 1097.8345733372.

The spelling of 1323154965 in words is "one billion, three hundred twenty-three million, one hundred fifty-four thousand, nine hundred sixty-five".