451001011 has 4 divisors (see below), whose sum is σ = 466552800. Its totient is φ = 435449224.

The previous prime is 451000909. The next prime is 451001059. The reversal of 451001011 is 110100154.

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 451001011 - 2²³ = 442612403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451000982 and 451001000.

It is not an unprimeable number, because it can be changed into a prime (451001611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7775851 + ... + 7775908.

It is an arithmetic number, because the mean of its divisors is an integer number (116638200).

Almost surely, 2^451001011 is an apocalyptic number.

451001011 is a deficient number, since it is larger than the sum of its proper divisors (15551789).

451001011 is a wasteful number, since it uses less digits than its factorization.

451001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551788.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 451001011 is about 21236.7843846473. The cubic root of 451001011 is about 766.8772220885.

Adding to 451001011 its reverse (110100154), we get a palindrome (561101165).

The spelling of 451001011 in words is "four hundred fifty-one million, one thousand, eleven".