5731381 has 8 divisors (see below), whose sum is σ = 5870304. Its totient is φ = 5594160.

The previous prime is 5731361. The next prime is 5731391. The reversal of 5731381 is 1831375.

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

It is a cyclic number.

It is not a de Polignac number, because 5731381 - 2⁹ = 5730869 is a prime.

It is a super-2 number, since 2×5731381² = 65697456334322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5731351) 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, 8451 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (733788).

Almost surely, 2^5731381 is an apocalyptic number.

It is an amenable number.

5731381 is a deficient number, since it is larger than the sum of its proper divisors (138923).

5731381 is a wasteful number, since it uses less digits than its factorization.

5731381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its digits is 2520, while the sum is 28.

The square root of 5731381 is about 2394.0302838519. The cubic root of 5731381 is about 178.9588141149.

The spelling of 5731381 in words is "five million, seven hundred thirty-one thousand, three hundred eighty-one".