117270121 has 4 divisors (see below), whose sum is σ = 119192644. Its totient is φ = 115347600.

The previous prime is 117270089. The next prime is 117270133. The reversal of 117270121 is 121072711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121072711 = 2741 ⋅44171.

It can be written as a sum of positive squares in 2 ways, for example, as 44355600 + 72914521 = 6660^2 + 8539^2 .

It is a cyclic number.

It is not a de Polignac number, because 117270121 - 2⁵ = 117270089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117270092 and 117270101.

It is not an unprimeable number, because it can be changed into a prime (117270151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961170 + ... + 961291.

It is an arithmetic number, because the mean of its divisors is an integer number (29798161).

Almost surely, 2^117270121 is an apocalyptic number.

It is an amenable number.

117270121 is a deficient number, since it is larger than the sum of its proper divisors (1922523).

117270121 is an equidigital number, since it uses as much as digits as its factorization.

117270121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922522.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 117270121 is about 10829.1329754510. The cubic root of 117270121 is about 489.4734326732.

The spelling of 117270121 in words is "one hundred seventeen million, two hundred seventy thousand, one hundred twenty-one".