5145505129 has 4 divisors (see below), whose sum is σ = 5167589076. Its totient is φ = 5123421184.

The previous prime is 5145505103. The next prime is 5145505163. The reversal of 5145505129 is 9215055415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9215055415 = 5 ⋅1843011083.

It can be written as a sum of positive squares in 2 ways, for example, as 3585255129 + 1560250000 = 59877^2 + 39500^2 .

It is a cyclic number.

It is not a de Polignac number, because 5145505129 - 2⁵ = 5145505097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5145505199) 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, 11041624 + ... + 11042089.

It is an arithmetic number, because the mean of its divisors is an integer number (1291897269).

Almost surely, 2^5145505129 is an apocalyptic number.

It is an amenable number.

5145505129 is a deficient number, since it is larger than the sum of its proper divisors (22083947).

5145505129 is a wasteful number, since it uses less digits than its factorization.

5145505129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22083946.

The product of its (nonzero) digits is 45000, while the sum is 37.

The square root of 5145505129 is about 71732.1763854966. The cubic root of 5145505129 is about 1726.4049470187.

The spelling of 5145505129 in words is "five billion, one hundred forty-five million, five hundred five thousand, one hundred twenty-nine".