117523837 has 2 divisors, whose sum is σ = 117523838. Its totient is φ = 117523836.

The previous prime is 117523823. The next prime is 117523841. The reversal of 117523837 is 738325711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 41293476 = 8731^2 + 6426^2 .

It is an emirp because it is prime and its reverse (738325711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117523837 - 2¹⁵ = 117491069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117523796 and 117523805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117523807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58761918 + 58761919.

It is an arithmetic number, because the mean of its divisors is an integer number (58761919).

Almost surely, 2^117523837 is an apocalyptic number.

It is an amenable number.

117523837 is a deficient number, since it is larger than the sum of its proper divisors (1).

117523837 is an equidigital number, since it uses as much as digits as its factorization.

117523837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 117523837 is about 10840.8411574010. The cubic root of 117523837 is about 489.8261732446.

The spelling of 117523837 in words is "one hundred seventeen million, five hundred twenty-three thousand, eight hundred thirty-seven".