2451231 has 6 divisors (see below), whose sum is σ = 3540680. Its totient is φ = 1634148.

The previous prime is 2451223. The next prime is 2451233. The reversal of 2451231 is 1321542.

It is not a de Polignac number, because 2451231 - 2³ = 2451223 is a prime.

It is a super-2 number, since 2×2451231² = 12017066830722, 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 (2451233) 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 5 ways as a sum of consecutive naturals, for example, 136171 + ... + 136188.

2^2451231 is an apocalyptic number.

2451231 is a deficient number, since it is larger than the sum of its proper divisors (1089449).

2451231 is a wasteful number, since it uses less digits than its factorization.

2451231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272365 (or 272362 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2451231 is about 1565.6407633937. The cubic root of 2451231 is about 134.8325495865.

Adding to 2451231 its reverse (1321542), we get a palindrome (3772773).

The spelling of 2451231 in words is "two million, four hundred fifty-one thousand, two hundred thirty-one".