5131863 has 32 divisors (see below), whose sum is σ = 8536320. Its totient is φ = 3019680.

The previous prime is 5131853. The next prime is 5131871. The reversal of 5131863 is 3681315.

It is not a de Polignac number, because 5131863 - 2⁶ = 5131799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131813) 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 31 ways as a sum of consecutive naturals, for example, 10756 + ... + 11222.

It is an arithmetic number, because the mean of its divisors is an integer number (266760).

Almost surely, 2^5131863 is an apocalyptic number.

5131863 is a deficient number, since it is larger than the sum of its proper divisors (3404457).

5131863 is a wasteful number, since it uses less digits than its factorization.

5131863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 518 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 5131863 is about 2265.3615605461. The cubic root of 5131863 is about 172.4877874152.

The spelling of 5131863 in words is "five million, one hundred thirty-one thousand, eight hundred sixty-three".