207142287 has 32 divisors (see below), whose sum is σ = 307722240. Its totient is φ = 122892000.

The previous prime is 207142261. The next prime is 207142303. The reversal of 207142287 is 782241702.

It is not a de Polignac number, because 207142287 - 2¹¹ = 207140239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207142487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494164 + ... + 494582.

It is an arithmetic number, because the mean of its divisors is an integer number (9616320).

Almost surely, 2^207142287 is an apocalyptic number.

207142287 is a deficient number, since it is larger than the sum of its proper divisors (100579953).

207142287 is a wasteful number, since it uses less digits than its factorization.

207142287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 207142287 is about 14392.4385355644. The cubic root of 207142287 is about 591.6836777582.

Adding to 207142287 its reverse (782241702), we get a palindrome (989383989).

The spelling of 207142287 in words is "two hundred seven million, one hundred forty-two thousand, two hundred eighty-seven".