121935154 has 8 divisors (see below), whose sum is σ = 199530288. Its totient is φ = 55425060.

The previous prime is 121935133. The next prime is 121935161. The reversal of 121935154 is 451539121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771232 + ... + 2771275.

It is an arithmetic number, because the mean of its divisors is an integer number (24941286).

Almost surely, 2^121935154 is an apocalyptic number.

121935154 is a deficient number, since it is larger than the sum of its proper divisors (77595134).

121935154 is a wasteful number, since it uses less digits than its factorization.

121935154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542520.

The product of its digits is 5400, while the sum is 31.

The square root of 121935154 is about 11042.4251865249. The cubic root of 121935154 is about 495.8796778249.

The spelling of 121935154 in words is "one hundred twenty-one million, nine hundred thirty-five thousand, one hundred fifty-four".