121135875 has 32 divisors (see below), whose sum is σ = 230370816. Its totient is φ = 55375200.

The previous prime is 121135867. The next prime is 121135901. The reversal of 121135875 is 578531121.

It is not a de Polignac number, because 121135875 - 2³ = 121135867 is a prime.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20449 + ... + 25698.

It is an arithmetic number, because the mean of its divisors is an integer number (7199088).

Almost surely, 2^121135875 is an apocalyptic number.

121135875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121135875 is a deficient number, since it is larger than the sum of its proper divisors (109234941).

121135875 is an equidigital number, since it uses as much as digits as its factorization.

121135875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46172 (or 46162 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 121135875 is about 11006.1744034883. The cubic root of 121135875 is about 494.7938127085.

Adding to 121135875 its reverse (578531121), we get a palindrome (699666996).

The spelling of 121135875 in words is "one hundred twenty-one million, one hundred thirty-five thousand, eight hundred seventy-five".