207157387 has 2 divisors, whose sum is σ = 207157388. Its totient is φ = 207157386.

The previous prime is 207157369. The next prime is 207157397. The reversal of 207157387 is 783751702.

207157387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 207157387 - 2¹¹ = 207155339 is a prime.

It is not a weakly prime, because it can be changed into another prime (207157397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103578693 + 103578694.

It is an arithmetic number, because the mean of its divisors is an integer number (103578694).

Almost surely, 2^207157387 is an apocalyptic number.

207157387 is a deficient number, since it is larger than the sum of its proper divisors (1).

207157387 is an equidigital number, since it uses as much as digits as its factorization.

207157387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 207157387 is about 14392.9631070187. The cubic root of 207157387 is about 591.6980546817.

The spelling of 207157387 in words is "two hundred seven million, one hundred fifty-seven thousand, three hundred eighty-seven".