117439 has 8 divisors (see below), whose sum is σ = 141440. Its totient is φ = 95256.

The previous prime is 117437. The next prime is 117443. The reversal of 117439 is 934711.

117439 = 36² + 37² + ... + 73².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117439 - 2¹ = 117437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 574.

It is an arithmetic number, because the mean of its divisors is an integer number (17680).

2¹¹⁷⁴³⁹ is an apocalyptic number.

117439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

117439 is a deficient number, since it is larger than the sum of its proper divisors (24001).

117439 is an equidigital number, since it uses as much as digits as its factorization.

117439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its digits is 756, while the sum is 25.

The square root of 117439 is about 342.6937408241. The cubic root of 117439 is about 48.9708281172.

The spelling of 117439 in words is "one hundred seventeen thousand, four hundred thirty-nine".