121335065 has 8 divisors (see below), whose sum is σ = 146207688. Its totient is φ = 96664320.

The previous prime is 121335061. The next prime is 121335079. The reversal of 121335065 is 560533121.

It can be written as a sum of positive squares in 4 ways, for example, as 13756681 + 107578384 = 3709^2 + 10372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121335065 - 2² = 121335061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121335061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49142 + ... + 51551.

It is an arithmetic number, because the mean of its divisors is an integer number (18275961).

Almost surely, 2^121335065 is an apocalyptic number.

It is an amenable number.

121335065 is a deficient number, since it is larger than the sum of its proper divisors (24872623).

121335065 is a wasteful number, since it uses less digits than its factorization.

121335065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100939.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 121335065 is about 11015.2196982176. The cubic root of 121335065 is about 495.0648692321.

Adding to 121335065 its reverse (560533121), we get a palindrome (681868186).

The spelling of 121335065 in words is "one hundred twenty-one million, three hundred thirty-five thousand, sixty-five".