117762261 has 8 divisors (see below), whose sum is σ = 157067904. Its totient is φ = 78482400.

The previous prime is 117762259. The next prime is 117762287. The reversal of 117762261 is 162267711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117762261 - 2¹ = 117762259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117766261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10836 + ... + 18786.

It is an arithmetic number, because the mean of its divisors is an integer number (19633488).

Almost surely, 2^117762261 is an apocalyptic number.

It is an amenable number.

117762261 is a deficient number, since it is larger than the sum of its proper divisors (39305643).

117762261 is an equidigital number, since it uses as much as digits as its factorization.

117762261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891.

The product of its digits is 7056, while the sum is 33.

The square root of 117762261 is about 10851.8321494575. The cubic root of 117762261 is about 490.1571909952.

The spelling of 117762261 in words is "one hundred seventeen million, seven hundred sixty-two thousand, two hundred sixty-one".