117212055 has 32 divisors (see below), whose sum is σ = 197337600. Its totient is φ = 59321472.

The previous prime is 117212027. The next prime is 117212077. The reversal of 117212055 is 550212711.

It is not a de Polignac number, because 117212055 - 2²³ = 108823447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23382 + ... + 27948.

It is an arithmetic number, because the mean of its divisors is an integer number (6166800).

Almost surely, 2^117212055 is an apocalyptic number.

117212055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117212055 is a deficient number, since it is larger than the sum of its proper divisors (80125545).

117212055 is a wasteful number, since it uses less digits than its factorization.

117212055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 117212055 is about 10826.4516347694. The cubic root of 117212055 is about 489.3926321635.

Adding to 117212055 its reverse (550212711), we get a palindrome (667424766).

The spelling of 117212055 in words is "one hundred seventeen million, two hundred twelve thousand, fifty-five".