3129081 has 16 divisors (see below), whose sum is σ = 4406400. Its totient is φ = 1971200.

The previous prime is 3129073. The next prime is 3129089. The reversal of 3129081 is 1809213.

It is an interprime number because it is at equal distance from previous prime (3129073) and next prime (3129089).

It is a cyclic number.

It is not a de Polignac number, because 3129081 - 2³ = 3129073 is a prime.

It is a super-2 number, since 2×3129081² = 19582295809122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3129089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6745 + ... + 7193.

It is an arithmetic number, because the mean of its divisors is an integer number (275400).

Almost surely, 2^3129081 is an apocalyptic number.

It is an amenable number.

3129081 is a deficient number, since it is larger than the sum of its proper divisors (1277319).

3129081 is a wasteful number, since it uses less digits than its factorization.

3129081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 3129081 is about 1768.9208574721. The cubic root of 3129081 is about 146.2645014476.

The spelling of 3129081 in words is "three million, one hundred twenty-nine thousand, eighty-one".