3147081 has 8 divisors (see below), whose sum is σ = 4795584. Its totient is φ = 1798320.

The previous prime is 3147077. The next prime is 3147083. The reversal of 3147081 is 1807413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3147081 - 2² = 3147077 is a prime.

It is a super-2 number, since 2×3147081² = 19808237641122, which contains 22 as substring.

3147081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3147083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74910 + ... + 74951.

It is an arithmetic number, because the mean of its divisors is an integer number (599448).

Almost surely, 2^3147081 is an apocalyptic number.

It is an amenable number.

3147081 is a deficient number, since it is larger than the sum of its proper divisors (1648503).

3147081 is a wasteful number, since it uses less digits than its factorization.

3147081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149871.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 3147081 is about 1774.0014092441. The cubic root of 3147081 is about 146.5444269581.

The spelling of 3147081 in words is "three million, one hundred forty-seven thousand, eighty-one".