117199291 has 4 divisors (see below), whose sum is σ = 127853784. Its totient is φ = 106544800.

The previous prime is 117199273. The next prime is 117199333. The reversal of 117199291 is 192991711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192991711 = 11 ⋅17544701.

It is a cyclic number.

It is not a de Polignac number, because 117199291 - 2¹⁵ = 117166523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117199231) 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, 5327230 + ... + 5327251.

It is an arithmetic number, because the mean of its divisors is an integer number (31963446).

Almost surely, 2^117199291 is an apocalyptic number.

117199291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117199291 is a deficient number, since it is larger than the sum of its proper divisors (10654493).

117199291 is a wasteful number, since it uses less digits than its factorization.

117199291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654492.

The product of its digits is 10206, while the sum is 40.

The square root of 117199291 is about 10825.8621365691. The cubic root of 117199291 is about 489.3748671128.

It can be divided in two parts, 11 and 7199291, that multiplied together give a square (79192201 = 8899²).

The spelling of 117199291 in words is "one hundred seventeen million, one hundred ninety-nine thousand, two hundred ninety-one".