117525287 has 4 divisors (see below), whose sum is σ = 128209416. Its totient is φ = 106841160.

The previous prime is 117525277. The next prime is 117525299. The reversal of 117525287 is 782525711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117525287 - 2⁴ = 117525271 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 117525287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117525257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342048 + ... + 5342069.

It is an arithmetic number, because the mean of its divisors is an integer number (32052354).

Almost surely, 2^117525287 is an apocalyptic number.

117525287 is a deficient number, since it is larger than the sum of its proper divisors (10684129).

117525287 is a wasteful number, since it uses less digits than its factorization.

117525287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684128.

The product of its digits is 39200, while the sum is 38.

The square root of 117525287 is about 10840.9080339241. The cubic root of 117525287 is about 489.8281877155.

It can be divided in two parts, 1175 and 25287, that added together give a palindrome (26462).

The spelling of 117525287 in words is "one hundred seventeen million, five hundred twenty-five thousand, two hundred eighty-seven".