117026252281 has 9 divisors (see below), whose sum is σ = 124321262671. Its totient is φ = 110136881632.

The previous prime is 117026252209. The next prime is 117026252323. The reversal of 117026252281 is 182252620711.

It is a happy number.

The square root of 117026252281 is 342091.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 91110404025 + 25915848256 = 301845^2 + 160984^2 .

It is not a de Polignac number, because 117026252281 - 2¹¹ = 117026250233 is a prime.

It is a super-2 number, since 2×117026252281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117026252281.

It is not an unprimeable number, because it can be changed into a prime (117026250281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5805486 + ... + 5825608.

Almost surely, 2^117026252281 is an apocalyptic number.

117026252281 is the 342091-st square number.

117026252281 is the 171046-th centered octagonal number.

It is an amenable number.

117026252281 is a deficient number, since it is larger than the sum of its proper divisors (7295010390).

117026252281 is an frugal number, since it uses more digits than its factorization.

117026252281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40280 (or 20140 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

Adding to 117026252281 its reverse (182252620711), we get a palindrome (299278872992).

The spelling of 117026252281 in words is "one hundred seventeen billion, twenty-six million, two hundred fifty-two thousand, two hundred eighty-one".