451049 has 4 divisors (see below), whose sum is σ = 453264. Its totient is φ = 448836.

The previous prime is 451039. The next prime is 451051. The reversal of 451049 is 940154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 940154 = 2 ⋅470077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (113316).

2⁴⁵¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

451049 is a deficient number, since it is larger than the sum of its proper divisors (2215).

451049 is a wasteful number, since it uses less digits than its factorization.

451049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 451049 is about 671.6018165550. The cubic root of 451049 is about 76.6904421115.

The spelling of 451049 in words is "four hundred fifty-one thousand, forty-nine".