451431 has 6 divisors (see below), whose sum is σ = 652080. Its totient is φ = 300948.

The previous prime is 451411. The next prime is 451439. The reversal of 451431 is 134154.

It is a happy number.

It is not a de Polignac number, because 451431 - 2⁷ = 451303 is a prime.

It is a super-2 number, since 2×451431² = 407579895522, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 451431.

It is not an unprimeable number, because it can be changed into a prime (451439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25071 + ... + 25088.

It is an arithmetic number, because the mean of its divisors is an integer number (108680).

2⁴⁵¹⁴³¹ is an apocalyptic number.

451431 is a deficient number, since it is larger than the sum of its proper divisors (200649).

451431 is a wasteful number, since it uses less digits than its factorization.

451431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50165 (or 50162 counting only the distinct ones).

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

The square root of 451431 is about 671.8861510703. The cubic root of 451431 is about 76.7120860885.

Adding to 451431 its reverse (134154), we get a palindrome (585585).

The spelling of 451431 in words is "four hundred fifty-one thousand, four hundred thirty-one".