3146881 has 4 divisors (see below), whose sum is σ = 3151152. Its totient is φ = 3142612.

The previous prime is 3146879. The next prime is 3146909. The reversal of 3146881 is 1886413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3146881 - 2¹ = 3146879 is a prime.

It is a super-2 number, since 2×3146881² = 19805720056322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3146831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715 + ... + 2608.

It is an arithmetic number, because the mean of its divisors is an integer number (787788).

Almost surely, 2^3146881 is an apocalyptic number.

It is an amenable number.

3146881 is a deficient number, since it is larger than the sum of its proper divisors (4271).

3146881 is an equidigital number, since it uses as much as digits as its factorization.

3146881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its digits is 4608, while the sum is 31.

The square root of 3146881 is about 1773.9450386075. The cubic root of 3146881 is about 146.5413225463.

The spelling of 3146881 in words is "three million, one hundred forty-six thousand, eight hundred eighty-one".