5131305 has 24 divisors (see below), whose sum is σ = 8990280. Its totient is φ = 2707200.

The previous prime is 5131283. The next prime is 5131307. The reversal of 5131305 is 5031315.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 670761 + 4460544 = 819^2 + 2112^2 .

It is not a de Polignac number, because 5131305 - 2⁷ = 5131177 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5131307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3981 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (374595).

Almost surely, 2^5131305 is an apocalyptic number.

It is an amenable number.

5131305 is a deficient number, since it is larger than the sum of its proper divisors (3858975).

5131305 is a wasteful number, since it uses less digits than its factorization.

5131305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 5131305 is about 2265.2383980500. The cubic root of 5131305 is about 172.4815355157.

The spelling of 5131305 in words is "five million, one hundred thirty-one thousand, three hundred five".