117253787 has 4 divisors (see below), whose sum is σ = 134004336. Its totient is φ = 100503240.

The previous prime is 117253783. The next prime is 117253813. The reversal of 117253787 is 787352711.

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 117253787 - 2² = 117253783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117253781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8375264 + ... + 8375277.

It is an arithmetic number, because the mean of its divisors is an integer number (33501084).

Almost surely, 2^117253787 is an apocalyptic number.

117253787 is a deficient number, since it is larger than the sum of its proper divisors (16750549).

117253787 is an equidigital number, since it uses as much as digits as its factorization.

117253787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16750548.

The product of its digits is 82320, while the sum is 41.

The square root of 117253787 is about 10828.3787798544. The cubic root of 117253787 is about 489.4507061389.

The spelling of 117253787 in words is "one hundred seventeen million, two hundred fifty-three thousand, seven hundred eighty-seven".