3140287 has 4 divisors (see below), whose sum is σ = 3149080. Its totient is φ = 3131496.

The previous prime is 3140273. The next prime is 3140297. The reversal of 3140287 is 7820413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7820413 = 433 ⋅18061.

It is a cyclic number.

It is not a de Polignac number, because 3140287 - 2¹⁹ = 2615999 is a prime.

It is a super-2 number, since 2×3140287² = 19722804884738, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140237) 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 3 ways as a sum of consecutive naturals, for example, 3837 + ... + 4582.

It is an arithmetic number, because the mean of its divisors is an integer number (787270).

Almost surely, 2^3140287 is an apocalyptic number.

3140287 is a deficient number, since it is larger than the sum of its proper divisors (8793).

3140287 is an equidigital number, since it uses as much as digits as its factorization.

3140287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8792.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3140287 is about 1772.0854945515. The cubic root of 3140287 is about 146.4388963457.

The spelling of 3140287 in words is "three million, one hundred forty thousand, two hundred eighty-seven".