5131866 has 8 divisors (see below), whose sum is σ = 10263744. Its totient is φ = 1710620.

The previous prime is 5131853. The next prime is 5131871. The reversal of 5131866 is 6681315.

It is a sphenic number, since it is the product of 3 distinct primes.

5131866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427650 + ... + 427661.

It is an arithmetic number, because the mean of its divisors is an integer number (1282968).

Almost surely, 2^5131866 is an apocalyptic number.

5131866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5131866 is a wasteful number, since it uses less digits than its factorization.

5131866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855316.

The product of its digits is 4320, while the sum is 30.

The square root of 5131866 is about 2265.3622226920. The cubic root of 5131866 is about 172.4878210263.

The spelling of 5131866 in words is "five million, one hundred thirty-one thousand, eight hundred sixty-six".