5145144231 has 16 divisors (see below), whose sum is σ = 7432660224. Its totient is φ = 3153247104.

The previous prime is 5145144223. The next prime is 5145144241. The reversal of 5145144231 is 1324415415.

It is not a de Polignac number, because 5145144231 - 2³ = 5145144223 is a prime.

It is a super-3 number, since 3×5145144231³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145144241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170891 + ... + 1175276.

It is an arithmetic number, because the mean of its divisors is an integer number (464541264).

Almost surely, 2^5145144231 is an apocalyptic number.

5145144231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5145144231 is a deficient number, since it is larger than the sum of its proper divisors (2287515993).

5145144231 is a wasteful number, since it uses less digits than its factorization.

5145144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346230.

The product of its digits is 9600, while the sum is 30.

The square root of 5145144231 is about 71729.6607478385. The cubic root of 5145144231 is about 1726.3645835919.

Adding to 5145144231 its reverse (1324415415), we get a palindrome (6469559646).

The spelling of 5145144231 in words is "five billion, one hundred forty-five million, one hundred forty-four thousand, two hundred thirty-one".