3201138 has 12 divisors (see below), whose sum is σ = 6935838. Its totient is φ = 1067040.

The previous prime is 3201131. The next prime is 3201161. The reversal of 3201138 is 8311023.

It can be written as a sum of positive squares in only one way, i.e., 2634129 + 567009 = 1623^2 + 753^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 177841 = 3201138 / (3 + 2 + 0 + 1 + 1 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 3201138.

It is not an unprimeable number, because it can be changed into a prime (3201131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88903 + ... + 88938.

Almost surely, 2^3201138 is an apocalyptic number.

3201138 is an abundant number, since it is smaller than the sum of its proper divisors (3734700).

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

3201138 is a wasteful number, since it uses less digits than its factorization.

3201138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177849 (or 177846 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3201138 is about 1789.1724343953. The cubic root of 3201138 is about 147.3787263246.

The spelling of 3201138 in words is "three million, two hundred one thousand, one hundred thirty-eight".