5145535123 has 4 divisors (see below), whose sum is σ = 5145690600. Its totient is φ = 5145379648.

The previous prime is 5145535121. The next prime is 5145535139. The reversal of 5145535123 is 3215355415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3215355415 = 5 ⋅643071083.

It is a cyclic number.

It is not a de Polignac number, because 5145535123 - 2¹ = 5145535121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5145535121) 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, 6073 + ... + 101626.

It is an arithmetic number, because the mean of its divisors is an integer number (1286422650).

Almost surely, 2^5145535123 is an apocalyptic number.

5145535123 is a deficient number, since it is larger than the sum of its proper divisors (155477).

5145535123 is a wasteful number, since it uses less digits than its factorization.

5145535123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155476.

The product of its digits is 45000, while the sum is 34.

The square root of 5145535123 is about 71732.3854545490. The cubic root of 5145535123 is about 1726.4083015122.

The spelling of 5145535123 in words is "five billion, one hundred forty-five million, five hundred thirty-five thousand, one hundred twenty-three".