5145344345 has 4 divisors (see below), whose sum is σ = 6174413220. Its totient is φ = 4116275472.

The previous prime is 5145344279. The next prime is 5145344387. The reversal of 5145344345 is 5434435415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5434435415 = 5 ⋅1086887083.

It can be written as a sum of positive squares in 2 ways, for example, as 2088581401 + 3056762944 = 45701^2 + 55288^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145344345 - 2⁸ = 5145344089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5145344299 and 5145344308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514534430 + ... + 514534439.

It is an arithmetic number, because the mean of its divisors is an integer number (1543603305).

Almost surely, 2^5145344345 is an apocalyptic number.

It is an amenable number.

5145344345 is a deficient number, since it is larger than the sum of its proper divisors (1029068875).

5145344345 is a wasteful number, since it uses less digits than its factorization.

5145344345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029068874.

The product of its digits is 288000, while the sum is 38.

The square root of 5145344345 is about 71731.0556523463. The cubic root of 5145344345 is about 1726.3869649044.

The spelling of 5145344345 in words is "five billion, one hundred forty-five million, three hundred forty-four thousand, three hundred forty-five".