117443551 has 2 divisors, whose sum is σ = 117443552. Its totient is φ = 117443550.

The previous prime is 117443549. The next prime is 117443567. The reversal of 117443551 is 155344711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117443551 - 2¹ = 117443549 is a prime.

Together with 117443549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117443581) 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, 58721775 + 58721776.

It is an arithmetic number, because the mean of its divisors is an integer number (58721776).

Almost surely, 2^117443551 is an apocalyptic number.

117443551 is a deficient number, since it is larger than the sum of its proper divisors (1).

117443551 is an equidigital number, since it uses as much as digits as its factorization.

117443551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 117443551 is about 10837.1375833289. The cubic root of 117443551 is about 489.7146068205.

The spelling of 117443551 in words is "one hundred seventeen million, four hundred forty-three thousand, five hundred fifty-one".