5133768121 has 4 divisors (see below), whose sum is σ = 5220781200. Its totient is φ = 5046755044.

The previous prime is 5133768119. The next prime is 5133768131. The reversal of 5133768121 is 1218673315.

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 5133768121 - 2¹ = 5133768119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5133768131) 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, 43506451 + ... + 43506568.

It is an arithmetic number, because the mean of its divisors is an integer number (1305195300).

Almost surely, 2^5133768121 is an apocalyptic number.

It is an amenable number.

5133768121 is a deficient number, since it is larger than the sum of its proper divisors (87013079).

5133768121 is an equidigital number, since it uses as much as digits as its factorization.

5133768121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87013078.

The product of its digits is 30240, while the sum is 37.

The square root of 5133768121 is about 71650.3183593765. The cubic root of 5133768121 is about 1725.0912920669.

The spelling of 5133768121 in words is "five billion, one hundred thirty-three million, seven hundred sixty-eight thousand, one hundred twenty-one".