5451231 has 4 divisors (see below), whose sum is σ = 7268312. Its totient is φ = 3634152.

The previous prime is 5451151. The next prime is 5451241. The reversal of 5451231 is 1321545.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5451231 - 2⁹ = 5450719 is a prime.

It is a super-3 number, since 3×5451231³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Duffinian number.

5451231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5451198 and 5451207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908536 + ... + 908541.

It is an arithmetic number, because the mean of its divisors is an integer number (1817078).

Almost surely, 2^5451231 is an apocalyptic number.

5451231 is a deficient number, since it is larger than the sum of its proper divisors (1817081).

5451231 is a wasteful number, since it uses less digits than its factorization.

5451231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817080.

The product of its digits is 600, while the sum is 21.

The square root of 5451231 is about 2334.7871423323. The cubic root of 5451231 is about 175.9941350491.

Adding to 5451231 its reverse (1321545), we get a palindrome (6772776).

The spelling of 5451231 in words is "five million, four hundred fifty-one thousand, two hundred thirty-one".