3150729 has 12 divisors (see below), whose sum is σ = 4818996. Its totient is φ = 1976832.

The previous prime is 3150709. The next prime is 3150733. The reversal of 3150729 is 9270513.

It can be written as a sum of positive squares in 2 ways, for example, as 2822400 + 328329 = 1680^2 + 573^2 .

It is not a de Polignac number, because 3150729 - 2⁷ = 3150601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3150709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10144 + ... + 10449.

It is an arithmetic number, because the mean of its divisors is an integer number (401583).

Almost surely, 2^3150729 is an apocalyptic number.

It is an amenable number.

3150729 is a deficient number, since it is larger than the sum of its proper divisors (1668267).

3150729 is a wasteful number, since it uses less digits than its factorization.

3150729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20616 (or 20613 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3150729 is about 1775.0292955329. The cubic root of 3150729 is about 146.6010283655.

The spelling of 3150729 in words is "three million, one hundred fifty thousand, seven hundred twenty-nine".