117170481 has 4 divisors (see below), whose sum is σ = 156227312. Its totient is φ = 78113652.

The previous prime is 117170479. The next prime is 117170489. The reversal of 117170481 is 184071711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184071711 = 3 ⋅61357237.

It is not a de Polignac number, because 117170481 - 2¹ = 117170479 is a prime.

It is a super-2 number, since 2×117170481² = 27457843235542722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117170489) 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, 19528411 + ... + 19528416.

It is an arithmetic number, because the mean of its divisors is an integer number (39056828).

Almost surely, 2^117170481 is an apocalyptic number.

It is an amenable number.

117170481 is a deficient number, since it is larger than the sum of its proper divisors (39056831).

117170481 is an equidigital number, since it uses as much as digits as its factorization.

117170481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39056830.

The product of its (nonzero) digits is 1568, while the sum is 30.

The square root of 117170481 is about 10824.5314448248. The cubic root of 117170481 is about 489.3347643521.

The spelling of 117170481 in words is "one hundred seventeen million, one hundred seventy thousand, four hundred eighty-one".