117060721 has 4 divisors (see below), whose sum is σ = 118376100. Its totient is φ = 115745344.

The previous prime is 117060719. The next prime is 117060737. The reversal of 117060721 is 127060711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 127060711 = 10069 ⋅12619.

It can be written as a sum of positive squares in 2 ways, for example, as 58308496 + 58752225 = 7636^2 + 7665^2 .

It is a cyclic number.

It is not a de Polignac number, because 117060721 - 2¹ = 117060719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117060751) 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, 657556 + ... + 657733.

It is an arithmetic number, because the mean of its divisors is an integer number (29594025).

Almost surely, 2^117060721 is an apocalyptic number.

It is an amenable number.

117060721 is a deficient number, since it is larger than the sum of its proper divisors (1315379).

117060721 is an equidigital number, since it uses as much as digits as its factorization.

117060721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315378.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 117060721 is about 10819.4602915303. The cubic root of 117060721 is about 489.1819210681.

The spelling of 117060721 in words is "one hundred seventeen million, sixty thousand, seven hundred twenty-one".