5403181 has 6 divisors (see below), whose sum is σ = 6285390. Its totient is φ = 4631256.

The previous prime is 5403169. The next prime is 5403247. The reversal of 5403181 is 1813045.

It can be written as a sum of positive squares in only one way, i.e., 5336100 + 67081 = 2310^2 + 259^2 .

It is not a de Polignac number, because 5403181 - 2⁵ = 5403149 is a prime.

It is a super-2 number, since 2×5403181² = 58388729837522, 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 (5403481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55086 + ... + 55183.

It is an arithmetic number, because the mean of its divisors is an integer number (1047565).

Almost surely, 2^5403181 is an apocalyptic number.

It is an amenable number.

5403181 is a deficient number, since it is larger than the sum of its proper divisors (882209).

5403181 is a wasteful number, since it uses less digits than its factorization.

5403181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110283 (or 110276 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 5403181 is about 2324.4743491809. The cubic root of 5403181 is about 175.4755067914.

It can be divided in two parts, 540 and 3181, that added together give a square (3721 = 61²).

The spelling of 5403181 in words is "five million, four hundred three thousand, one hundred eighty-one".