5181456 has 60 divisors (see below), whose sum is σ = 15577872. Its totient is φ = 1479744.

The previous prime is 5181431. The next prime is 5181469. The reversal of 5181456 is 6541815.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251 + ... + 3453.

Almost surely, 2^5181456 is an apocalyptic number.

5181456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5181456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7788936).

5181456 is an abundant number, since it is smaller than the sum of its proper divisors (10396416).

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

5181456 is a wasteful number, since it uses less digits than its factorization.

5181456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2215 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 5181456 is about 2276.2811777107. The cubic root of 5181456 is about 173.0416329796.

The spelling of 5181456 in words is "five million, one hundred eighty-one thousand, four hundred fifty-six".