117741397 has 4 divisors (see below), whose sum is σ = 118091116. Its totient is φ = 117391680.

The previous prime is 117741389. The next prime is 117741401. The reversal of 117741397 is 793147711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793147711 = 149 ⋅5323139.

It can be written as a sum of positive squares in 2 ways, for example, as 87721956 + 30019441 = 9366^2 + 5479^2 .

It is a cyclic number.

It is not a de Polignac number, because 117741397 - 2³ = 117741389 is a prime.

It is a super-3 number, since 3×117741397³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117771397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174354 + ... + 175027.

It is an arithmetic number, because the mean of its divisors is an integer number (29522779).

Almost surely, 2^117741397 is an apocalyptic number.

It is an amenable number.

117741397 is a deficient number, since it is larger than the sum of its proper divisors (349719).

117741397 is an equidigital number, since it uses as much as digits as its factorization.

117741397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349718.

The product of its digits is 37044, while the sum is 40.

The square root of 117741397 is about 10850.8707945492. The cubic root of 117741397 is about 490.1282421522.

The spelling of 117741397 in words is "one hundred seventeen million, seven hundred forty-one thousand, three hundred ninety-seven".