323145901 has 24 divisors (see below), whose sum is σ = 377412504. Its totient is φ = 274803840.

The previous prime is 323145899. The next prime is 323145919. The reversal of 323145901 is 109541323.

It can be written as a sum of positive squares in 4 ways, for example, as 763876 + 322382025 = 874^2 + 17955^2 .

It is not a de Polignac number, because 323145901 - 2¹ = 323145899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323145901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323145931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172711 + ... + 174571.

It is an arithmetic number, because the mean of its divisors is an integer number (15725521).

Almost surely, 2^323145901 is an apocalyptic number.

It is an amenable number.

323145901 is a deficient number, since it is larger than the sum of its proper divisors (54266603).

323145901 is a wasteful number, since it uses less digits than its factorization.

323145901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 323145901 is about 17976.2593717380. The cubic root of 323145901 is about 686.2244963609.

The spelling of 323145901 in words is "three hundred twenty-three million, one hundred forty-five thousand, nine hundred one".