207131157 has 6 divisors (see below), whose sum is σ = 299189462. Its totient is φ = 138087432.

The previous prime is 207131131. The next prime is 207131167. The reversal of 207131157 is 751131702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 207100881 + 30276 = 14391^2 + 174^2 .

It is not a de Polignac number, because 207131157 - 2¹⁵ = 207098389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 207131157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207131107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11507278 + ... + 11507295.

Almost surely, 2^207131157 is an apocalyptic number.

It is an amenable number.

207131157 is a deficient number, since it is larger than the sum of its proper divisors (92058305).

207131157 is a wasteful number, since it uses less digits than its factorization.

207131157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23014579 (or 23014576 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 207131157 is about 14392.0518690005. The cubic root of 207131157 is about 591.6730802805.

Adding to 207131157 its reverse (751131702), we get a palindrome (958262859).

The spelling of 207131157 in words is "two hundred seven million, one hundred thirty-one thousand, one hundred fifty-seven".