117456481 has 4 divisors (see below), whose sum is σ = 117478192. Its totient is φ = 117434772.

The previous prime is 117456473. The next prime is 117456487. The reversal of 117456481 is 184654711.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 184654711 = 19 ⋅9718669.

It is a cyclic number.

It is not a de Polignac number, because 117456481 - 2³ = 117456473 is a prime.

It is a super-2 number, since 2×117456481² = 27592049857806722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117456481.

It is not an unprimeable number, because it can be changed into a prime (117456487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4510 + ... + 15976.

It is an arithmetic number, because the mean of its divisors is an integer number (29369548).

Almost surely, 2^117456481 is an apocalyptic number.

It is an amenable number.

117456481 is a deficient number, since it is larger than the sum of its proper divisors (21711).

117456481 is a wasteful number, since it uses less digits than its factorization.

117456481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21710.

The product of its digits is 26880, while the sum is 37.

The square root of 117456481 is about 10837.7341266521. The cubic root of 117456481 is about 489.7325779435.

The spelling of 117456481 in words is "one hundred seventeen million, four hundred fifty-six thousand, four hundred eighty-one".