3144921 has 12 divisors (see below), whose sum is σ = 4541328. Its totient is φ = 1935024.

The previous prime is 3144907. The next prime is 3144923. The reversal of 3144921 is 1294413.

It is not a de Polignac number, because 3144921 - 2⁷ = 3144793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3144891 and 3144900.

It is not an unprimeable number, because it can be changed into a prime (3144923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2595 + ... + 3608.

It is an arithmetic number, because the mean of its divisors is an integer number (378444).

Almost surely, 2^3144921 is an apocalyptic number.

It is an amenable number.

3144921 is a deficient number, since it is larger than the sum of its proper divisors (1396407).

3144921 is a wasteful number, since it uses less digits than its factorization.

3144921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232 (or 6219 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 3144921 is about 1773.3925115439. The cubic root of 3144921 is about 146.5108923475.

The spelling of 3144921 in words is "three million, one hundred forty-four thousand, nine hundred twenty-one".