99081445 has 8 divisors (see below), whose sum is σ = 119120760. Its totient is φ = 79116480.

The previous prime is 99081421. The next prime is 99081469. The reversal of 99081445 is 54418099.

It is an interprime number because it is at equal distance from previous prime (99081421) and next prime (99081469).

It can be written as a sum of positive squares in 4 ways, for example, as 26388769 + 72692676 = 5137^2 + 8526^2 .

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

It is not a de Polignac number, because 99081445 - 2⁷ = 99081317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99081398 and 99081407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15610 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (14890095).

Almost surely, 2^99081445 is an apocalyptic number.

It is an amenable number.

99081445 is a deficient number, since it is larger than the sum of its proper divisors (20039315).

99081445 is a wasteful number, since it uses less digits than its factorization.

99081445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37175.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 99081445 is about 9953.9662948997. The cubic root of 99081445 is about 462.7333246866.

The spelling of 99081445 in words is "ninety-nine million, eighty-one thousand, four hundred forty-five".