5139169345 has 16 divisors (see below), whose sum is σ = 6217084368. Its totient is φ = 4077998080.

The previous prime is 5139169339. The next prime is 5139169361. The reversal of 5139169345 is 5439619315.

It is a Cunningham number, because it is equal to 71688²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 968205456 + 4170963889 = 31116^2 + 64583^2 .

It is not a de Polignac number, because 5139169345 - 2³ = 5139169337 is a prime.

It is a super-2 number, since 2×5139169345² = 52822123113175458050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5139169295 and 5139169304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160235 + ... + 1164655.

It is an arithmetic number, because the mean of its divisors is an integer number (388567773).

Almost surely, 2^5139169345 is an apocalyptic number.

It is an amenable number.

5139169345 is a deficient number, since it is larger than the sum of its proper divisors (1077915023).

5139169345 is a wasteful number, since it uses less digits than its factorization.

5139169345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260.

The product of its digits is 437400, while the sum is 46.

The square root of 5139169345 is about 71688.0000069747. Note that the first 5 decimals coincide. The cubic root of 5139169345 is about 1725.6960680327.

The spelling of 5139169345 in words is "five billion, one hundred thirty-nine million, one hundred sixty-nine thousand, three hundred forty-five".