117254861 has 4 divisors (see below), whose sum is σ = 118463772. Its totient is φ = 116045952.

The previous prime is 117254783. The next prime is 117254869. The reversal of 117254861 is 168452711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22562500 + 94692361 = 4750^2 + 9731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117254861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117254869) 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, 604310 + ... + 604503.

It is an arithmetic number, because the mean of its divisors is an integer number (29615943).

Almost surely, 2^117254861 is an apocalyptic number.

It is an amenable number.

117254861 is a deficient number, since it is larger than the sum of its proper divisors (1208911).

117254861 is an equidigital number, since it uses as much as digits as its factorization.

117254861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208910.

The product of its digits is 13440, while the sum is 35.

The square root of 117254861 is about 10828.4283716521. The cubic root of 117254861 is about 489.4522005283.

The spelling of 117254861 in words is "one hundred seventeen million, two hundred fifty-four thousand, eight hundred sixty-one".