1000454591 has 4 divisors (see below), whose sum is σ = 1010360184. Its totient is φ = 990549000.

The previous prime is 1000454569. The next prime is 1000454617. The reversal of 1000454591 is 1954540001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000454591 - 2¹⁰ = 1000453567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000454531) 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, 4952645 + ... + 4952846.

It is an arithmetic number, because the mean of its divisors is an integer number (252590046).

Almost surely, 2^1000454591 is an apocalyptic number.

1000454591 is a deficient number, since it is larger than the sum of its proper divisors (9905593).

1000454591 is an equidigital number, since it uses as much as digits as its factorization.

1000454591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905592.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1000454591 is about 31629.9634998209. The cubic root of 1000454591 is about 1000.1515073777.

Adding to 1000454591 its reverse (1954540001), we get a palindrome (2954994592).

The spelling of 1000454591 in words is "one billion, four hundred fifty-four thousand, five hundred ninety-one".