117305481 has 16 divisors (see below), whose sum is σ = 157899456. Its totient is φ = 77462016.

The previous prime is 117305453. The next prime is 117305509. The reversal of 117305481 is 184503711.

It is an interprime number because it is at equal distance from previous prime (117305453) and next prime (117305509).

It is not a de Polignac number, because 117305481 - 2¹⁰ = 117304457 is a prime.

It is a super-2 number, since 2×117305481² = 27521151745282722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117305401) 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, 197521 + ... + 198113.

It is an arithmetic number, because the mean of its divisors is an integer number (9868716).

Almost surely, 2^117305481 is an apocalyptic number.

It is an amenable number.

117305481 is a deficient number, since it is larger than the sum of its proper divisors (40593975).

117305481 is a wasteful number, since it uses less digits than its factorization.

117305481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 117305481 is about 10830.7654854124. The cubic root of 117305481 is about 489.5226240646.

It can be divided in two parts, 11730 and 5481, that multiplied together give a triangular number (64292130 = T₁₁₃₃₉).

The spelling of 117305481 in words is "one hundred seventeen million, three hundred five thousand, four hundred eighty-one".