451248091 has 16 divisors (see below), whose sum is σ = 546517440. Its totient is φ = 364331520.

The previous prime is 451248073. The next prime is 451248101. The reversal of 451248091 is 190842154.

It is a happy number.

It is not a de Polignac number, because 451248091 - 2⁷ = 451247963 is a prime.

It is a super-2 number, since 2×451248091² = 407249679262288562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451248001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18786 + ... + 35431.

It is an arithmetic number, because the mean of its divisors is an integer number (34157340).

Almost surely, 2^451248091 is an apocalyptic number.

451248091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

451248091 is a deficient number, since it is larger than the sum of its proper divisors (95269349).

451248091 is a wasteful number, since it uses less digits than its factorization.

451248091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54294.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 451248091 is about 21242.6008530029. The cubic root of 451248091 is about 767.0172405717.

The spelling of 451248091 in words is "four hundred fifty-one million, two hundred forty-eight thousand, ninety-one".