5145231 has 32 divisors (see below), whose sum is σ = 8644608. Its totient is φ = 2649600.

The previous prime is 5145211. The next prime is 5145233. The reversal of 5145231 is 1325415.

It is not a de Polignac number, because 5145231 - 2⁹ = 5144719 is a prime.

It is a super-2 number, since 2×5145231² = 52946804086722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 5145198 and 5145207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12631 + ... + 13031.

It is an arithmetic number, because the mean of its divisors is an integer number (270144).

Almost surely, 2^5145231 is an apocalyptic number.

5145231 is a deficient number, since it is larger than the sum of its proper divisors (3499377).

5145231 is a wasteful number, since it uses less digits than its factorization.

5145231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 600, while the sum is 21.

The square root of 5145231 is about 2268.3101639767. The cubic root of 5145231 is about 172.6374288152.

The spelling of 5145231 in words is "five million, one hundred forty-five thousand, two hundred thirty-one".