5131678 has 16 divisors (see below), whose sum is σ = 8164224. Its totient is φ = 2414880.

The previous prime is 5131673. The next prime is 5131697. The reversal of 5131678 is 8761315.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131673) 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 7 ways as a sum of consecutive naturals, for example, 1176 + ... + 3412.

It is an arithmetic number, because the mean of its divisors is an integer number (510264).

Almost surely, 2^5131678 is an apocalyptic number.

5131678 is a deficient number, since it is larger than the sum of its proper divisors (3032546).

5131678 is a wasteful number, since it uses less digits than its factorization.

5131678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its digits is 5040, while the sum is 31.

The square root of 5131678 is about 2265.3207278441. The cubic root of 5131678 is about 172.4857147030.

The spelling of 5131678 in words is "five million, one hundred thirty-one thousand, six hundred seventy-eight".