117632551 has 2 divisors, whose sum is σ = 117632552. Its totient is φ = 117632550.

The previous prime is 117632549. The next prime is 117632611. The reversal of 117632551 is 155236711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117632551 - 2¹ = 117632549 is a prime.

Together with 117632549, 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 (117632521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58816275 + 58816276.

It is an arithmetic number, because the mean of its divisors is an integer number (58816276).

Almost surely, 2^117632551 is an apocalyptic number.

117632551 is a deficient number, since it is larger than the sum of its proper divisors (1).

117632551 is an equidigital number, since it uses as much as digits as its factorization.

117632551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 31.

The square root of 117632551 is about 10845.8540926937. The cubic root of 117632551 is about 489.9771626174.

The spelling of 117632551 in words is "one hundred seventeen million, six hundred thirty-two thousand, five hundred fifty-one".