5113638121 has 8 divisors (see below), whose sum is σ = 5418995400. Its totient is φ = 4816882560.

The previous prime is 5113638107. The next prime is 5113638137. The reversal of 5113638121 is 1218363115.

It can be written as a sum of positive squares in 4 ways, for example, as 4247721 + 5109390400 = 2061^2 + 71480^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5113638121 - 2⁷ = 5113637993 is a prime.

It is a super-2 number, since 2×5113638121² = 52298589665088821282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5113638191) 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, 2149206 + ... + 2151583.

It is an arithmetic number, because the mean of its divisors is an integer number (677374425).

Almost surely, 2^5113638121 is an apocalyptic number.

It is an amenable number.

5113638121 is a deficient number, since it is larger than the sum of its proper divisors (305357279).

5113638121 is a wasteful number, since it uses less digits than its factorization.

5113638121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300859.

The product of its digits is 4320, while the sum is 31.

The square root of 5113638121 is about 71509.7064810086. The cubic root of 5113638121 is about 1722.8335888143.

The spelling of 5113638121 in words is "five billion, one hundred thirteen million, six hundred thirty-eight thousand, one hundred twenty-one".