5181385 has 8 divisors (see below), whose sum is σ = 6782976. Its totient is φ = 3768240.

The previous prime is 5181383. The next prime is 5181391. The reversal of 5181385 is 5831815.

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

It is not a de Polignac number, because 5181385 - 2¹ = 5181383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5181383) 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, 47049 + ... + 47158.

It is an arithmetic number, because the mean of its divisors is an integer number (847872).

Almost surely, 2^5181385 is an apocalyptic number.

5181385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5181385 is a deficient number, since it is larger than the sum of its proper divisors (1601591).

5181385 is a wasteful number, since it uses less digits than its factorization.

5181385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94223.

The product of its digits is 4800, while the sum is 31.

The square root of 5181385 is about 2276.2655820444. The cubic root of 5181385 is about 173.0408425961.

The spelling of 5181385 in words is "five million, one hundred eighty-one thousand, three hundred eighty-five".