117132261 has 32 divisors (see below), whose sum is σ = 175488768. Its totient is φ = 69104640.

The previous prime is 117132259. The next prime is 117132271. The reversal of 117132261 is 162231711.

It is not a de Polignac number, because 117132261 - 2¹ = 117132259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117132251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70735 + ... + 72371.

It is an arithmetic number, because the mean of its divisors is an integer number (5484024).

Almost surely, 2^117132261 is an apocalyptic number.

It is an amenable number.

117132261 is a deficient number, since it is larger than the sum of its proper divisors (58356507).

117132261 is a wasteful number, since it uses less digits than its factorization.

117132261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741.

The product of its digits is 504, while the sum is 24.

The square root of 117132261 is about 10822.7658664502. The cubic root of 117132261 is about 489.2815529732.

Adding to 117132261 its reverse (162231711), we get a palindrome (279363972).

The spelling of 117132261 in words is "one hundred seventeen million, one hundred thirty-two thousand, two hundred sixty-one".