5437181 has 6 divisors (see below), whose sum is σ = 5637690. Its totient is φ = 5237568.

The previous prime is 5437171. The next prime is 5437189. The reversal of 5437181 is 1817345.

It can be written as a sum of positive squares in 3 ways, for example, as 8281 + 5428900 = 91^2 + 2330^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5437181 is a prime.

It is a super-2 number, since 2×5437181² = 59125874453522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5437189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12341 + ... + 12773.

It is an arithmetic number, because the mean of its divisors is an integer number (939615).

Almost surely, 2^5437181 is an apocalyptic number.

It is an amenable number.

5437181 is a deficient number, since it is larger than the sum of its proper divisors (200509).

5437181 is an frugal number, since it uses more digits than its factorization.

5437181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 462 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 5437181 is about 2331.7763614892. The cubic root of 5437181 is about 175.8428025617.

Multiplying 5437181 by its sum of digits (29), we get a square (157678249 = 12557²).

5437181 divided by its sum of digits (29) gives a square (187489 = 433²).

The spelling of 5437181 in words is "five million, four hundred thirty-seven thousand, one hundred eighty-one".