183138468 has 12 divisors (see below), whose sum is σ = 427323120. Its totient is φ = 61046152.

The previous prime is 183138437. The next prime is 183138469. The reversal of 183138468 is 864831381.

183138468 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×183138468² = 67079396922774048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (183138469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7630758 + ... + 7630781.

It is an arithmetic number, because the mean of its divisors is an integer number (35610260).

Almost surely, 2^183138468 is an apocalyptic number.

It is an amenable number.

183138468 is an abundant number, since it is smaller than the sum of its proper divisors (244184652).

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

183138468 is a wasteful number, since it uses less digits than its factorization.

183138468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261546 (or 15261544 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 183138468 is about 13532.8662152554. The cubic root of 183138468 is about 567.8842958463.

The spelling of 183138468 in words is "one hundred eighty-three million, one hundred thirty-eight thousand, four hundred sixty-eight".