117227155 has 16 divisors (see below), whose sum is σ = 149878944. Its totient is φ = 87713280.

The previous prime is 117227101. The next prime is 117227191. The reversal of 117227155 is 551722711.

It is not a de Polignac number, because 117227155 - 2²¹ = 115130003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9625 + ... + 18085.

It is an arithmetic number, because the mean of its divisors is an integer number (9367434).

Almost surely, 2^117227155 is an apocalyptic number.

117227155 is a deficient number, since it is larger than the sum of its proper divisors (32651789).

117227155 is a wasteful number, since it uses less digits than its factorization.

117227155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8646.

The product of its digits is 4900, while the sum is 31.

The square root of 117227155 is about 10827.1489783784. The cubic root of 117227155 is about 489.4136468150.

Adding to 117227155 its reverse (551722711), we get a palindrome (668949866).

The spelling of 117227155 in words is "one hundred seventeen million, two hundred twenty-seven thousand, one hundred fifty-five".