121935153 has 8 divisors (see below), whose sum is σ = 162648928. Its totient is φ = 81255744.

The previous prime is 121935133. The next prime is 121935161. The reversal of 121935153 is 351539121.

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

It is not a de Polignac number, because 121935153 - 2⁶ = 121935089 is a prime.

It is a Duffinian number.

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 121935153.

It is not an unprimeable number, because it can be changed into a prime (121935133) 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, 1326 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (20331116).

Almost surely, 2^121935153 is an apocalyptic number.

It is an amenable number.

121935153 is a deficient number, since it is larger than the sum of its proper divisors (40713775).

121935153 is a wasteful number, since it uses less digits than its factorization.

121935153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183.

The product of its digits is 4050, while the sum is 30.

The square root of 121935153 is about 11042.4251412450. The cubic root of 121935153 is about 495.8796764693.

The spelling of 121935153 in words is "one hundred twenty-one million, nine hundred thirty-five thousand, one hundred fifty-three".