3165274821 has 8 divisors (see below), whose sum is σ = 4223367360. Its totient is φ = 2108682752.

The previous prime is 3165274799. The next prime is 3165274837. The reversal of 3165274821 is 1284725613.

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 3165274821 - 2⁶ = 3165274757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3165274821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3165274841) 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, 370185 + ... + 378638.

It is an arithmetic number, because the mean of its divisors is an integer number (527920920).

Almost surely, 2^3165274821 is an apocalyptic number.

It is an amenable number.

3165274821 is a deficient number, since it is larger than the sum of its proper divisors (1058092539).

3165274821 is a wasteful number, since it uses less digits than its factorization.

3165274821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750235.

The product of its digits is 80640, while the sum is 39.

The square root of 3165274821 is about 56260.7751546315. The cubic root of 3165274821 is about 1468.2628408052.

The spelling of 3165274821 in words is "three billion, one hundred sixty-five million, two hundred seventy-four thousand, eight hundred twenty-one".