3149287 has 4 divisors (see below), whose sum is σ = 3156840. Its totient is φ = 3141736.

The previous prime is 3149273. The next prime is 3149309. The reversal of 3149287 is 7829413.

3149287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7829413 = 137 ⋅57149.

It is a cyclic number.

It is not a de Polignac number, because 3149287 - 2¹¹ = 3147239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3112 + ... + 3997.

It is an arithmetic number, because the mean of its divisors is an integer number (789210).

Almost surely, 2^3149287 is an apocalyptic number.

3149287 is a deficient number, since it is larger than the sum of its proper divisors (7553).

3149287 is an equidigital number, since it uses as much as digits as its factorization.

3149287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552.

The product of its digits is 12096, while the sum is 34.

The square root of 3149287 is about 1774.6230585676. The cubic root of 3149287 is about 146.5786598976.

The spelling of 3149287 in words is "three million, one hundred forty-nine thousand, two hundred eighty-seven".