207900231 has 16 divisors (see below), whose sum is σ = 345600768. Its totient is φ = 108000000.

The previous prime is 207900211. The next prime is 207900241. The reversal of 207900231 is 132009702.

It is not a de Polignac number, because 207900231 - 2⁹ = 207899719 is a prime.

It is a super-2 number, since 2×207900231² = 86445012099706722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207900211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449770 + ... + 450231.

It is an arithmetic number, because the mean of its divisors is an integer number (21600048).

Almost surely, 2^207900231 is an apocalyptic number.

207900231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

207900231 is a deficient number, since it is larger than the sum of its proper divisors (137700537).

207900231 is a wasteful number, since it uses less digits than its factorization.

207900231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900022.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 207900231 is about 14418.7458192452. The cubic root of 207900231 is about 592.4044660726.

Adding to 207900231 its reverse (132009702), we get a palindrome (339909933).

It can be divided in two parts, 207900 and 231, that multiplied together give a triangular number (48024900 = T₉₈₀₀).

The spelling of 207900231 in words is "two hundred seven million, nine hundred thousand, two hundred thirty-one".