3120851 has 4 divisors (see below), whose sum is σ = 3128400. Its totient is φ = 3113304.

The previous prime is 3120841. The next prime is 3120857. The reversal of 3120851 is 1580213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3116 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (782100).

Almost surely, 2^3120851 is an apocalyptic number.

3120851 is a deficient number, since it is larger than the sum of its proper divisors (7549).

3120851 is an equidigital number, since it uses as much as digits as its factorization.

3120851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 3120851 is about 1766.5930487806. The cubic root of 3120851 is about 146.1361555902.

The spelling of 3120851 in words is "three million, one hundred twenty thousand, eight hundred fifty-one".