121914609 has 8 divisors (see below), whose sum is σ = 162722112. Its totient is φ = 81191760.

The previous prime is 121914587. The next prime is 121914613. The reversal of 121914609 is 906419121.

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

It is not a de Polignac number, because 121914609 - 2⁵ = 121914577 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121914609.

It is not an unprimeable number, because it can be changed into a prime (121914619) 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, 17722 + ... + 23619.

It is an arithmetic number, because the mean of its divisors is an integer number (20340264).

Almost surely, 2^121914609 is an apocalyptic number.

It is an amenable number.

121914609 is a deficient number, since it is larger than the sum of its proper divisors (40807503).

121914609 is an equidigital number, since it uses as much as digits as its factorization.

121914609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42327.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 121914609 is about 11041.4948716195. The cubic root of 121914609 is about 495.8518258072.

The spelling of 121914609 in words is "one hundred twenty-one million, nine hundred fourteen thousand, six hundred nine".