3138433 has 4 divisors (see below), whose sum is σ = 3178240. Its totient is φ = 3098628.

The previous prime is 3138403. The next prime is 3138449. The reversal of 3138433 is 3348313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3348313 = 19 ⋅176227.

It is a cyclic number.

It is not a de Polignac number, because 3138433 - 2¹³ = 3130241 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3138398 and 3138407.

It is not an unprimeable number, because it can be changed into a prime (3138403) 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, 19785 + ... + 19942.

It is an arithmetic number, because the mean of its divisors is an integer number (794560).

Almost surely, 2^3138433 is an apocalyptic number.

It is an amenable number.

3138433 is a deficient number, since it is larger than the sum of its proper divisors (39807).

3138433 is an equidigital number, since it uses as much as digits as its factorization.

3138433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39806.

The product of its digits is 2592, while the sum is 25.

The square root of 3138433 is about 1771.5623048598. The cubic root of 3138433 is about 146.4100718931.

The spelling of 3138433 in words is "three million, one hundred thirty-eight thousand, four hundred thirty-three".