3144236821 has 8 divisors (see below), whose sum is σ = 3447490464. Its totient is φ = 2843885520.

The previous prime is 3144236807. The next prime is 3144236833. The reversal of 3144236821 is 1286324413.

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 3144236821 - 2⁵ = 3144236789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144236021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723315 + ... + 727648.

It is an arithmetic number, because the mean of its divisors is an integer number (430936308).

Almost surely, 2^3144236821 is an apocalyptic number.

It is an amenable number.

3144236821 is a deficient number, since it is larger than the sum of its proper divisors (303253643).

3144236821 is a wasteful number, since it uses less digits than its factorization.

3144236821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451171.

The product of its digits is 27648, while the sum is 34.

The square root of 3144236821 is about 56073.4948170702. The cubic root of 3144236821 is about 1465.0026707310.

The spelling of 3144236821 in words is "three billion, one hundred forty-four million, two hundred thirty-six thousand, eight hundred twenty-one".