3129243 has 32 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 1762560.

The previous prime is 3129223. The next prime is 3129253. The reversal of 3129243 is 3429213.

It is not a de Polignac number, because 3129243 - 2⁸ = 3128987 is a prime.

3129243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3129223) 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 31 ways as a sum of consecutive naturals, for example, 30330 + ... + 30432.

It is an arithmetic number, because the mean of its divisors is an integer number (152880).

Almost surely, 2^3129243 is an apocalyptic number.

3129243 is a deficient number, since it is larger than the sum of its proper divisors (1762917).

3129243 is a wasteful number, since it uses less digits than its factorization.

3129243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its digits is 1296, while the sum is 24.

The square root of 3129243 is about 1768.9666475092. The cubic root of 3129243 is about 146.2670255583.

The spelling of 3129243 in words is "three million, one hundred twenty-nine thousand, two hundred forty-three".