5431321 has 16 divisors (see below), whose sum is σ = 6616960. Its totient is φ = 4354560.

The previous prime is 5431303. The next prime is 5431331. The reversal of 5431321 is 1231345.

It is a de Polignac number, because none of the positive numbers 2^k-5431321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (5431331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12691 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (413560).

Almost surely, 2^5431321 is an apocalyptic number.

It is an amenable number.

5431321 is a deficient number, since it is larger than the sum of its proper divisors (1185639).

5431321 is a wasteful number, since it uses less digits than its factorization.

5431321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its digits is 360, while the sum is 19.

The square root of 5431321 is about 2330.5194699895. The cubic root of 5431321 is about 175.7796074836.

Adding to 5431321 its reverse (1231345), we get a palindrome (6662666).

It can be divided in two parts, 54 and 31321, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 5431321 in words is "five million, four hundred thirty-one thousand, three hundred twenty-one".