117787459 has 4 divisors (see below), whose sum is σ = 117914104. Its totient is φ = 117660816.

The previous prime is 117787457. The next prime is 117787489. The reversal of 117787459 is 954787711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117787459 - 2¹ = 117787457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117787457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61917 + ... + 63790.

It is an arithmetic number, because the mean of its divisors is an integer number (29478526).

Almost surely, 2^117787459 is an apocalyptic number.

117787459 is a deficient number, since it is larger than the sum of its proper divisors (126645).

117787459 is an equidigital number, since it uses as much as digits as its factorization.

117787459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126644.

The product of its digits is 493920, while the sum is 49.

The square root of 117787459 is about 10852.9930894661. The cubic root of 117787459 is about 490.1921487142.

The spelling of 117787459 in words is "one hundred seventeen million, seven hundred eighty-seven thousand, four hundred fifty-nine".