207115307 has 24 divisors (see below), whose sum is σ = 251082720. Its totient is φ = 170190720.

The previous prime is 207115213. The next prime is 207115339. The reversal of 207115307 is 703511702.

It is a de Polignac number, because none of the positive numbers 2^k-207115307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (207115397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127919 + ... + 129527.

It is an arithmetic number, because the mean of its divisors is an integer number (10461780).

Almost surely, 2^207115307 is an apocalyptic number.

207115307 is a deficient number, since it is larger than the sum of its proper divisors (43967413).

207115307 is a wasteful number, since it uses less digits than its factorization.

207115307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 207115307 is about 14391.5012073098. The cubic root of 207115307 is about 591.6579879791.

The spelling of 207115307 in words is "two hundred seven million, one hundred fifteen thousand, three hundred seven".