1006451 has 8 divisors (see below), whose sum is σ = 1081584. Its totient is φ = 933120.

The previous prime is 1006441. The next prime is 1006463. The reversal of 1006451 is 1546001.

It is a happy number.

1006451 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1006451 - 2¹⁰ = 1005427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (135198).

2^1006451 is an apocalyptic number.

1006451 is a deficient number, since it is larger than the sum of its proper divisors (75133).

1006451 is an equidigital number, since it uses as much as digits as its factorization.

1006451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1006451 is about 1003.2203147863. The cubic root of 1006451 is about 100.2145725901.

The spelling of 1006451 in words is "one million, six thousand, four hundred fifty-one".