121564033 has 16 divisors (see below), whose sum is σ = 132580800. Its totient is φ = 111084480.

The previous prime is 121564031. The next prime is 121564049. The reversal of 121564033 is 330465121.

It is a cyclic number.

It is not a de Polignac number, because 121564033 - 2¹ = 121564031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121563989 and 121564007.

It is not an unprimeable number, because it can be changed into a prime (121564031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60438 + ... + 62416.

It is an arithmetic number, because the mean of its divisors is an integer number (8286300).

Almost surely, 2^121564033 is an apocalyptic number.

It is an amenable number.

121564033 is a deficient number, since it is larger than the sum of its proper divisors (11016767).

121564033 is a wasteful number, since it uses less digits than its factorization.

121564033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 121564033 is about 11025.6080557945. The cubic root of 121564033 is about 495.3760812335.

The spelling of 121564033 in words is "one hundred twenty-one million, five hundred sixty-four thousand, thirty-three".