117346261 has 4 divisors (see below), whose sum is σ = 123522400. Its totient is φ = 111170124.

The previous prime is 117346247. The next prime is 117346283. The reversal of 117346261 is 162643711.

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 an emirpimes, since its reverse is a distinct semiprime: 162643711 = 12343 ⋅13177.

It is a cyclic number.

It is not a de Polignac number, because 117346261 - 2²¹ = 115249109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117346211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088041 + ... + 3088078.

It is an arithmetic number, because the mean of its divisors is an integer number (30880600).

Almost surely, 2^117346261 is an apocalyptic number.

It is an amenable number.

117346261 is a deficient number, since it is larger than the sum of its proper divisors (6176139).

117346261 is an equidigital number, since it uses as much as digits as its factorization.

117346261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176138.

The product of its digits is 6048, while the sum is 31.

The square root of 117346261 is about 10832.6479219072. The cubic root of 117346261 is about 489.5793432665.

Adding to 117346261 its reverse (162643711), we get a palindrome (279989972).

The spelling of 117346261 in words is "one hundred seventeen million, three hundred forty-six thousand, two hundred sixty-one".