323145155 has 16 divisors (see below), whose sum is σ = 394752000. Its totient is φ = 253899360.

The previous prime is 323145139. The next prime is 323145191. The reversal of 323145155 is 551541323.

It is not a de Polignac number, because 323145155 - 2⁴ = 323145139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76550 + ... + 80660.

It is an arithmetic number, because the mean of its divisors is an integer number (24672000).

Almost surely, 2^323145155 is an apocalyptic number.

323145155 is a deficient number, since it is larger than the sum of its proper divisors (71606845).

323145155 is a wasteful number, since it uses less digits than its factorization.

323145155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394.

The product of its digits is 9000, while the sum is 29.

The square root of 323145155 is about 17976.2386221367. The cubic root of 323145155 is about 686.2239682982.

Adding to 323145155 its reverse (551541323), we get a palindrome (874686478).

The spelling of 323145155 in words is "three hundred twenty-three million, one hundred forty-five thousand, one hundred fifty-five".