117524261 has 2 divisors, whose sum is σ = 117524262. Its totient is φ = 117524260.

The previous prime is 117524249. The next prime is 117524279. The reversal of 117524261 is 162425711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 7672900 = 10481^2 + 2770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117524261 is a prime.

It is a super-2 number, since 2×117524261² = 27623903847192242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117524201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58762130 + 58762131.

It is an arithmetic number, because the mean of its divisors is an integer number (58762131).

Almost surely, 2^117524261 is an apocalyptic number.

It is an amenable number.

117524261 is a deficient number, since it is larger than the sum of its proper divisors (1).

117524261 is an equidigital number, since it uses as much as digits as its factorization.

117524261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 117524261 is about 10840.8607130615. The cubic root of 117524261 is about 489.8267623054.

Adding to 117524261 its reverse (162425711), we get a palindrome (279949972).

The spelling of 117524261 in words is "one hundred seventeen million, five hundred twenty-four thousand, two hundred sixty-one".