3126021 has 8 divisors (see below), whose sum is σ = 4190400. Its totient is φ = 2072832.

The previous prime is 3126007. The next prime is 3126023. The reversal of 3126021 is 1206213.

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

It is not a de Polignac number, because 3126021 - 2⁵ = 3125989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126023) 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, 2121 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (523800).

Almost surely, 2^3126021 is an apocalyptic number.

It is an amenable number.

3126021 is a deficient number, since it is larger than the sum of its proper divisors (1064379).

3126021 is a wasteful number, since it uses less digits than its factorization.

3126021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3126021 is about 1768.0557117919. The cubic root of 3126021 is about 146.2168074282.

The spelling of 3126021 in words is "three million, one hundred twenty-six thousand, twenty-one".