5142287 has 4 divisors (see below), whose sum is σ = 5149320. Its totient is φ = 5135256.

The previous prime is 5142259. The next prime is 5142289. The reversal of 5142287 is 7822415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5142287 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 (5142289) 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, 2273 + ... + 3930.

It is an arithmetic number, because the mean of its divisors is an integer number (1287330).

Almost surely, 2^5142287 is an apocalyptic number.

5142287 is a deficient number, since it is larger than the sum of its proper divisors (7033).

5142287 is an equidigital number, since it uses as much as digits as its factorization.

5142287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032.

The product of its digits is 4480, while the sum is 29.

The square root of 5142287 is about 2267.6611298869. The cubic root of 5142287 is about 172.6044959526.

The spelling of 5142287 in words is "five million, one hundred forty-two thousand, two hundred eighty-seven".