5145231509 has 16 divisors (see below), whose sum is σ = 5953305600. Its totient is φ = 4394818560.

The previous prime is 5145231473. The next prime is 5145231523. The reversal of 5145231509 is 9051325415.

It is not a de Polignac number, because 5145231509 - 2⁸ = 5145231253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145231529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87692 + ... + 134090.

It is an arithmetic number, because the mean of its divisors is an integer number (372081600).

Almost surely, 2^5145231509 is an apocalyptic number.

It is an amenable number.

5145231509 is a deficient number, since it is larger than the sum of its proper divisors (808074091).

5145231509 is a wasteful number, since it uses less digits than its factorization.

5145231509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47020.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 5145231509 is about 71730.2691267780. The cubic root of 5145231509 is about 1726.3743450802.

The spelling of 5145231509 in words is "five billion, one hundred forty-five million, two hundred thirty-one thousand, five hundred nine".