3143021 has 4 divisors (see below), whose sum is σ = 3592032. Its totient is φ = 2694012.

The previous prime is 3143003. The next prime is 3143027. The reversal of 3143021 is 1203413.

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.

It is a cyclic number.

It is not a de Polignac number, because 3143021 - 2¹⁸ = 2880877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3142987 and 3143005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143027) 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, 224495 + ... + 224508.

It is an arithmetic number, because the mean of its divisors is an integer number (898008).

Almost surely, 2^3143021 is an apocalyptic number.

It is an amenable number.

3143021 is a deficient number, since it is larger than the sum of its proper divisors (449011).

3143021 is an equidigital number, since it uses as much as digits as its factorization.

3143021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449010.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3143021 is about 1772.8567342005. The cubic root of 3143021 is about 146.4813816143.

Adding to 3143021 its reverse (1203413), we get a palindrome (4346434).

The spelling of 3143021 in words is "three million, one hundred forty-three thousand, twenty-one".