117154509 has 4 divisors (see below), whose sum is σ = 156206016. Its totient is φ = 78103004.

The previous prime is 117154483. The next prime is 117154511. The reversal of 117154509 is 905451711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117154509 - 2⁸ = 117154253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117154509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117154529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19525749 + ... + 19525754.

It is an arithmetic number, because the mean of its divisors is an integer number (39051504).

Almost surely, 2^117154509 is an apocalyptic number.

It is an amenable number.

117154509 is a deficient number, since it is larger than the sum of its proper divisors (39051507).

117154509 is an equidigital number, since it uses as much as digits as its factorization.

117154509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39051506.

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 117154509 is about 10823.7936510264. The cubic root of 117154509 is about 489.3125289167.

The spelling of 117154509 in words is "one hundred seventeen million, one hundred fifty-four thousand, five hundred nine".