117417551 has 2 divisors, whose sum is σ = 117417552. Its totient is φ = 117417550.

The previous prime is 117417529. The next prime is 117417571. The reversal of 117417551 is 155714711.

It is a strong prime.

It is an emirp because it is prime and its reverse (155714711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117417551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117417571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58708775 + 58708776.

It is an arithmetic number, because the mean of its divisors is an integer number (58708776).

Almost surely, 2^117417551 is an apocalyptic number.

117417551 is a deficient number, since it is larger than the sum of its proper divisors (1).

117417551 is an equidigital number, since it uses as much as digits as its factorization.

117417551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4900, while the sum is 32.

The square root of 117417551 is about 10835.9379381759. The cubic root of 117417551 is about 489.6784659983.

The spelling of 117417551 in words is "one hundred seventeen million, four hundred seventeen thousand, five hundred fifty-one".