117259609 has 4 divisors (see below), whose sum is σ = 119247120. Its totient is φ = 115272100.

The previous prime is 117259607. The next prime is 117259619. The reversal of 117259609 is 906952711.

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 117259609 - 2¹ = 117259607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117259601) 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, 993667 + ... + 993784.

It is an arithmetic number, because the mean of its divisors is an integer number (29811780).

Almost surely, 2^117259609 is an apocalyptic number.

It is an amenable number.

117259609 is a deficient number, since it is larger than the sum of its proper divisors (1987511).

117259609 is an equidigital number, since it uses as much as digits as its factorization.

117259609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987510.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 117259609 is about 10828.6476071576. The cubic root of 117259609 is about 489.4588069003.

The spelling of 117259609 in words is "one hundred seventeen million, two hundred fifty-nine thousand, six hundred nine".