99454581 has 8 divisors (see below), whose sum is σ = 147340160. Its totient is φ = 66303036.

The previous prime is 99454567. The next prime is 99454591. The reversal of 99454581 is 18545499.

It is not a de Polignac number, because 99454581 - 2⁵ = 99454549 is a prime.

It is a super-2 number, since 2×99454581² = 19782427363771122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99454591) 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 7 ways as a sum of consecutive naturals, for example, 1841725 + ... + 1841778.

It is an arithmetic number, because the mean of its divisors is an integer number (18417520).

Almost surely, 2^99454581 is an apocalyptic number.

It is an amenable number.

99454581 is a deficient number, since it is larger than the sum of its proper divisors (47885579).

99454581 is a wasteful number, since it uses less digits than its factorization.

99454581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683512 (or 3683506 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 99454581 is about 9972.6917630096. The cubic root of 99454581 is about 463.3134742393.

The spelling of 99454581 in words is "ninety-nine million, four hundred fifty-four thousand, five hundred eighty-one".