5491031 has 16 divisors (see below), whose sum is σ = 6849024. Its totient is φ = 4286304.

The previous prime is 5491001. The next prime is 5491039. The reversal of 5491031 is 1301945.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5491031 - 2⁶ = 5490967 is a prime.

It is a super-2 number, since 2×5491031² = 60302842885922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5490988 and 5491006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491039) 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 15 ways as a sum of consecutive naturals, for example, 7190 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (428064).

Almost surely, 2^5491031 is an apocalyptic number.

5491031 is a deficient number, since it is larger than the sum of its proper divisors (1357993).

5491031 is a wasteful number, since it uses less digits than its factorization.

5491031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 5491031 is about 2343.2949024824. The cubic root of 5491031 is about 176.4214139740.

Adding to 5491031 its reverse (1301945), we get a palindrome (6792976).

The spelling of 5491031 in words is "five million, four hundred ninety-one thousand, thirty-one".