323133138 has 96 divisors (see below), whose sum is σ = 761866560. Its totient is φ = 102513600.

The previous prime is 323133137. The next prime is 323133149. The reversal of 323133138 is 831331323.

323133138 is a `hidden beast` number, since 32 + 313 + 313 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (323133137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1423381 + ... + 1423607.

It is an arithmetic number, because the mean of its divisors is an integer number (7936110).

Almost surely, 2^323133138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323133138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380933280).

323133138 is an abundant number, since it is smaller than the sum of its proper divisors (438733422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323133138 is a wasteful number, since it uses less digits than its factorization.

323133138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 362 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 323133138 is about 17975.9043722423. The cubic root of 323133138 is about 686.2154618468.

The spelling of 323133138 in words is "three hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty-eight".