3124021 has 8 divisors (see below), whose sum is σ = 3348864. Its totient is φ = 2906640.

The previous prime is 3124019. The next prime is 3124027. The reversal of 3124021 is 1204213.

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

It is a cyclic number.

It is not a de Polignac number, because 3124021 - 2¹ = 3124019 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 = 3123992 and 3124010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (418608).

Almost surely, 2^3124021 is an apocalyptic number.

It is an amenable number.

3124021 is a deficient number, since it is larger than the sum of its proper divisors (224843).

3124021 is a wasteful number, since it uses less digits than its factorization.

3124021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3124021 is about 1767.4900282604. The cubic root of 3124021 is about 146.1856180448.

Adding to 3124021 its reverse (1204213), we get a palindrome (4328234).

The spelling of 3124021 in words is "three million, one hundred twenty-four thousand, twenty-one".