117801271 has 16 divisors (see below), whose sum is σ = 139356160. Its totient is φ = 97446240.

The previous prime is 117801269. The next prime is 117801289. The reversal of 117801271 is 172108711.

It is a cyclic number.

It is not a de Polignac number, because 117801271 - 2¹ = 117801269 is a prime.

117801271 is a modest number, since divided by 1271 gives 1178 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117801251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133885 + ... + 134761.

It is an arithmetic number, because the mean of its divisors is an integer number (8709760).

Almost surely, 2^117801271 is an apocalyptic number.

117801271 is a deficient number, since it is larger than the sum of its proper divisors (21554889).

117801271 is an equidigital number, since it uses as much as digits as its factorization.

117801271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 784, while the sum is 28.

The square root of 117801271 is about 10853.6293929727. The cubic root of 117801271 is about 490.2113082789.

Adding to 117801271 its reverse (172108711), we get a palindrome (289909982).

The spelling of 117801271 in words is "one hundred seventeen million, eight hundred one thousand, two hundred seventy-one".