3231138 has 8 divisors (see below), whose sum is σ = 6462288. Its totient is φ = 1077044.

The previous prime is 3231131. The next prime is 3231143. The reversal of 3231138 is 8311323.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3231138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3231131) 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, 269256 + ... + 269267.

It is an arithmetic number, because the mean of its divisors is an integer number (807786).

Almost surely, 2^3231138 is an apocalyptic number.

3231138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3231138 is a wasteful number, since it uses less digits than its factorization.

3231138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538528.

The product of its digits is 432, while the sum is 21.

The square root of 3231138 is about 1797.5366477488. The cubic root of 3231138 is about 147.8376903359.

The spelling of 3231138 in words is "three million, two hundred thirty-one thousand, one hundred thirty-eight".