121953938 has 8 divisors (see below), whose sum is σ = 188832000. Its totient is φ = 59009940.

The previous prime is 121953919. The next prime is 121953947. The reversal of 121953938 is 839359121.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121953895 and 121953904.

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, 983438 + ... + 983561.

It is an arithmetic number, because the mean of its divisors is an integer number (23604000).

Almost surely, 2^121953938 is an apocalyptic number.

121953938 is a deficient number, since it is larger than the sum of its proper divisors (66878062).

121953938 is a wasteful number, since it uses less digits than its factorization.

121953938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967032.

The product of its digits is 58320, while the sum is 41.

The square root of 121953938 is about 11043.2756915691. The cubic root of 121953938 is about 495.9051397892.

The spelling of 121953938 in words is "one hundred twenty-one million, nine hundred fifty-three thousand, nine hundred thirty-eight".