3144729 has 8 divisors (see below), whose sum is σ = 4792000. Its totient is φ = 1796976.

The previous prime is 3144727. The next prime is 3144737. The reversal of 3144729 is 9274413.

It is a happy number.

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

It is not a de Polignac number, because 3144729 - 2¹ = 3144727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3144696 and 3144705.

It is not an unprimeable number, because it can be changed into a prime (3144727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74854 + ... + 74895.

It is an arithmetic number, because the mean of its divisors is an integer number (599000).

Almost surely, 2^3144729 is an apocalyptic number.

It is an amenable number.

3144729 is a deficient number, since it is larger than the sum of its proper divisors (1647271).

3144729 is a wasteful number, since it uses less digits than its factorization.

3144729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149759.

The product of its digits is 6048, while the sum is 30.

The square root of 3144729 is about 1773.3383771858. The cubic root of 3144729 is about 146.5079107502.

The spelling of 3144729 in words is "three million, one hundred forty-four thousand, seven hundred twenty-nine".