121275433 has 4 divisors (see below), whose sum is σ = 128409300. Its totient is φ = 114141568.

The previous prime is 121275409. The next prime is 121275443. The reversal of 121275433 is 334572121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111239209 + 10036224 = 10547^2 + 3168^2 .

It is a cyclic number.

It is not a de Polignac number, because 121275433 - 2²¹ = 119178281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121275403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566908 + ... + 3566941.

It is an arithmetic number, because the mean of its divisors is an integer number (32102325).

Almost surely, 2^121275433 is an apocalyptic number.

It is an amenable number.

121275433 is a deficient number, since it is larger than the sum of its proper divisors (7133867).

121275433 is an equidigital number, since it uses as much as digits as its factorization.

121275433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133866.

The product of its digits is 5040, while the sum is 28.

The square root of 121275433 is about 11012.5125652596. The cubic root of 121275433 is about 494.9837535055.

The spelling of 121275433 in words is "one hundred twenty-one million, two hundred seventy-five thousand, four hundred thirty-three".