207135117 has 32 divisors (see below), whose sum is σ = 351375360. Its totient is φ = 118136880.

The previous prime is 207135101. The next prime is 207135119. The reversal of 207135117 is 711531702.

It is a happy number.

It is not a de Polignac number, because 207135117 - 2⁴ = 207135101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207135119) 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, 194328 + ... + 195390.

It is an arithmetic number, because the mean of its divisors is an integer number (10980480).

Almost surely, 2^207135117 is an apocalyptic number.

207135117 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

207135117 is a deficient number, since it is larger than the sum of its proper divisors (144240243).

207135117 is a wasteful number, since it uses less digits than its factorization.

207135117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2104 counting only the distinct ones).

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

The square root of 207135117 is about 14392.1894442784. The cubic root of 207135117 is about 591.6768508551.

Adding to 207135117 its reverse (711531702), we get a palindrome (918666819).

The spelling of 207135117 in words is "two hundred seven million, one hundred thirty-five thousand, one hundred seventeen".