117508451 has 2 divisors, whose sum is σ = 117508452. Its totient is φ = 117508450.

The previous prime is 117508429. The next prime is 117508453. The reversal of 117508451 is 154805711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117508451 - 2¹⁰ = 117507427 is a prime.

Together with 117508453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117508453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58754225 + 58754226.

It is an arithmetic number, because the mean of its divisors is an integer number (58754226).

Almost surely, 2^117508451 is an apocalyptic number.

117508451 is a deficient number, since it is larger than the sum of its proper divisors (1).

117508451 is an equidigital number, since it uses as much as digits as its factorization.

117508451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 117508451 is about 10840.1315028924. The cubic root of 117508451 is about 489.8047966042.

The spelling of 117508451 in words is "one hundred seventeen million, five hundred eight thousand, four hundred fifty-one".