5121301265 has 4 divisors (see below), whose sum is σ = 6145561524. Its totient is φ = 4097041008.

The previous prime is 5121301261. The next prime is 5121301291. The reversal of 5121301265 is 5621031215.

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 840478081 + 4280823184 = 28991^2 + 65428^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121301265 - 2² = 5121301261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121301261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512130122 + ... + 512130131.

It is an arithmetic number, because the mean of its divisors is an integer number (1536390381).

Almost surely, 2^5121301265 is an apocalyptic number.

It is an amenable number.

5121301265 is a deficient number, since it is larger than the sum of its proper divisors (1024260259).

5121301265 is a wasteful number, since it uses less digits than its factorization.

5121301265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024260258.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5121301265 is about 71563.2675679360. The cubic root of 5121301265 is about 1723.6937547851.

The spelling of 5121301265 in words is "five billion, one hundred twenty-one million, three hundred one thousand, two hundred sixty-five".