121335975 has 36 divisors (see below), whose sum is σ = 225386616. Its totient is φ = 64709280.

The previous prime is 121335961. The next prime is 121335979. The reversal of 121335975 is 579533121.

It is not a de Polignac number, because 121335975 - 2⁴ = 121335959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121335979) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3912 + ... + 16061.

Almost surely, 2^121335975 is an apocalyptic number.

121335975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121335975 is a deficient number, since it is larger than the sum of its proper divisors (104050641).

121335975 is an equidigital number, since it uses as much as digits as its factorization.

121335975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19998 (or 19981 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 121335975 is about 11015.2610046244. The cubic root of 121335975 is about 495.0661068736.

The spelling of 121335975 in words is "one hundred twenty-one million, three hundred thirty-five thousand, nine hundred seventy-five".