121935018 has 8 divisors (see below), whose sum is σ = 243870048. Its totient is φ = 40645004.

The previous prime is 121935013. The next prime is 121935019. The reversal of 121935018 is 810539121.

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

121935018 is an admirable number.

It is a super-2 number, since 2×121935018² = 29736297229320648, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121935013) 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, 10161246 + ... + 10161257.

It is an arithmetic number, because the mean of its divisors is an integer number (30483756).

Almost surely, 2^121935018 is an apocalyptic number.

121935018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121935018 is a wasteful number, since it uses less digits than its factorization.

121935018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20322508.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 121935018 is about 11042.4190284557. The cubic root of 121935018 is about 495.8794934656.

The spelling of 121935018 in words is "one hundred twenty-one million, nine hundred thirty-five thousand, eighteen".