121972353 has 8 divisors (see below), whose sum is σ = 163456128. Its totient is φ = 80901744.

The previous prime is 121972351. The next prime is 121972363. The reversal of 121972353 is 353279121.

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

It is not a de Polignac number, because 121972353 - 2¹ = 121972351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121972351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102601 + ... + 103782.

It is an arithmetic number, because the mean of its divisors is an integer number (20432016).

Almost surely, 2^121972353 is an apocalyptic number.

It is an amenable number.

121972353 is a deficient number, since it is larger than the sum of its proper divisors (41483775).

121972353 is a wasteful number, since it uses less digits than its factorization.

121972353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206583.

The product of its digits is 11340, while the sum is 33.

The square root of 121972353 is about 11044.1094253905. The cubic root of 121972353 is about 495.9300990312.

The spelling of 121972353 in words is "one hundred twenty-one million, nine hundred seventy-two thousand, three hundred fifty-three".