451963 has 4 divisors (see below), whose sum is σ = 455400. Its totient is φ = 448528.

The previous prime is 451961. The next prime is 451967. The reversal of 451963 is 369154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369154 = 2 ⋅184577.

It is a cyclic number.

It is not a de Polignac number, because 451963 - 2¹ = 451961 is a prime.

It is a Duffinian number.

451963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (451961) 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 3 ways as a sum of consecutive naturals, for example, 1513 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (113850).

2⁴⁵¹⁹⁶³ is an apocalyptic number.

451963 is a deficient number, since it is larger than the sum of its proper divisors (3437).

451963 is a wasteful number, since it uses less digits than its factorization.

451963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436.

The product of its digits is 3240, while the sum is 28.

The square root of 451963 is about 672.2819349053. The cubic root of 451963 is about 76.7422086755.

The spelling of 451963 in words is "four hundred fifty-one thousand, nine hundred sixty-three".