1336560121 has 4 divisors (see below), whose sum is σ = 1439372452. Its totient is φ = 1233747792.

The previous prime is 1336560109. The next prime is 1336560151. The reversal of 1336560121 is 1210656331.

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 911375721 + 425184400 = 30189^2 + 20620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1336560121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1336560121.

It is not an unprimeable number, because it can be changed into a prime (1336560101) 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, 51406146 + ... + 51406171.

It is an arithmetic number, because the mean of its divisors is an integer number (359843113).

Almost surely, 2^1336560121 is an apocalyptic number.

It is an amenable number.

1336560121 is a deficient number, since it is larger than the sum of its proper divisors (102812331).

1336560121 is a wasteful number, since it uses less digits than its factorization.

1336560121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102812330.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1336560121 is about 36558.9950764514. The cubic root of 1336560121 is about 1101.5295858493.

The spelling of 1336560121 in words is "one billion, three hundred thirty-six million, five hundred sixty thousand, one hundred twenty-one".