3125287 has 4 divisors (see below), whose sum is σ = 3409416. Its totient is φ = 2841160.

The previous prime is 3125261. The next prime is 3125293. The reversal of 3125287 is 7825213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3125287 - 2⁷ = 3125159 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 (3125257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142048 + ... + 142069.

It is an arithmetic number, because the mean of its divisors is an integer number (852354).

Almost surely, 2^3125287 is an apocalyptic number.

3125287 is a deficient number, since it is larger than the sum of its proper divisors (284129).

3125287 is a wasteful number, since it uses less digits than its factorization.

3125287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284128.

The product of its digits is 3360, while the sum is 28.

The square root of 3125287 is about 1767.8481269611. The cubic root of 3125287 is about 146.2053624701.

The spelling of 3125287 in words is "three million, one hundred twenty-five thousand, two hundred eighty-seven".