121570433 has 4 divisors (see below), whose sum is σ = 126856128. Its totient is φ = 116284740.

The previous prime is 121570381. The next prime is 121570439. The reversal of 121570433 is 334075121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121570433 - 2¹⁴ = 121554049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121570439) 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, 2642813 + ... + 2642858.

It is an arithmetic number, because the mean of its divisors is an integer number (31714032).

Almost surely, 2^121570433 is an apocalyptic number.

It is an amenable number.

121570433 is a deficient number, since it is larger than the sum of its proper divisors (5285695).

121570433 is an equidigital number, since it uses as much as digits as its factorization.

121570433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285694.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 121570433 is about 11025.8982854006. The cubic root of 121570433 is about 495.3847744607.

The spelling of 121570433 in words is "one hundred twenty-one million, five hundred seventy thousand, four hundred thirty-three".