1000451 has 4 divisors (see below), whose sum is σ = 1002792. Its totient is φ = 998112.

The previous prime is 1000429. The next prime is 1000453. The reversal of 1000451 is 1540001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1540001 = 41 ⋅37561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000453) 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, 326 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (250698).

2^1000451 is an apocalyptic number.

1000451 is a deficient number, since it is larger than the sum of its proper divisors (2341).

1000451 is an equidigital number, since it uses as much as digits as its factorization.

1000451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1000451 is about 1000.2254745806. The cubic root of 1000451 is about 100.0150310739.

Adding to 1000451 its reverse (1540001), we get a palindrome (2540452).

The spelling of 1000451 in words is "one million, four hundred fifty-one", and thus it is an aban number.