121575923 has 8 divisors (see below), whose sum is σ = 139748448. Its totient is φ = 103604544.

The previous prime is 121575919. The next prime is 121575943. The reversal of 121575923 is 329575121.

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

It is a cyclic number.

It is not a de Polignac number, because 121575923 - 2² = 121575919 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (121575913) 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, 48986 + ... + 51407.

It is an arithmetic number, because the mean of its divisors is an integer number (17468556).

Almost surely, 2^121575923 is an apocalyptic number.

121575923 is a deficient number, since it is larger than the sum of its proper divisors (18172525).

121575923 is a wasteful number, since it uses less digits than its factorization.

121575923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100573.

The product of its digits is 18900, while the sum is 35.

The square root of 121575923 is about 11026.1472418973. The cubic root of 121575923 is about 495.3922313766.

The spelling of 121575923 in words is "one hundred twenty-one million, five hundred seventy-five thousand, nine hundred twenty-three".