5131994 has 16 divisors (see below), whose sum is σ = 9315648. Its totient is φ = 2069952.

The previous prime is 5131993. The next prime is 5132009. The reversal of 5131994 is 4991315.

It is a self number, because there is not a number n which added to its sum of digits gives 5131994.

It is not an unprimeable number, because it can be changed into a prime (5131993) 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, 10544 + ... + 11019.

It is an arithmetic number, because the mean of its divisors is an integer number (582228).

Almost surely, 2^5131994 is an apocalyptic number.

5131994 is a deficient number, since it is larger than the sum of its proper divisors (4183654).

5131994 is a wasteful number, since it uses less digits than its factorization.

5131994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21589.

The product of its digits is 4860, while the sum is 32.

The square root of 5131994 is about 2265.3904740684. The cubic root of 5131994 is about 172.4892550893.

The spelling of 5131994 in words is "five million, one hundred thirty-one thousand, nine hundred ninety-four".