12057287 has 12 divisors (see below), whose sum is σ = 13339368. Its totient is φ = 10890000.

The previous prime is 12057281. The next prime is 12057293. The reversal of 12057287 is 78275021.

It is an interprime number because it is at equal distance from previous prime (12057281) and next prime (12057293).

It is not a de Polignac number, because 12057287 - 2¹² = 12053191 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 (12057281) 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 11 ways as a sum of consecutive naturals, for example, 30173 + ... + 30569.

It is an arithmetic number, because the mean of its divisors is an integer number (1111614).

Almost surely, 2^12057287 is an apocalyptic number.

12057287 is a deficient number, since it is larger than the sum of its proper divisors (1282081).

12057287 is a wasteful number, since it uses less digits than its factorization.

12057287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 12057287 is about 3472.3604363603. The cubic root of 12057287 is about 229.3065883288.

The spelling of 12057287 in words is "twelve million, fifty-seven thousand, two hundred eighty-seven".