99145408541 has 4 divisors (see below), whose sum is σ = 99165366300. Its totient is φ = 99125450784.

The previous prime is 99145408511. The next prime is 99145408589. The reversal of 99145408541 is 14580454199.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5512468516 + 93632940025 = 74246^2 + 305995^2 .

It is a cyclic number.

It is not a de Polignac number, because 99145408541 - 2⁶ = 99145408477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99145408541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99145408511) 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, 9971426 + ... + 9981363.

It is an arithmetic number, because the mean of its divisors is an integer number (24791341575).

Almost surely, 2^99145408541 is an apocalyptic number.

It is an amenable number.

99145408541 is a deficient number, since it is larger than the sum of its proper divisors (19957759).

99145408541 is a wasteful number, since it uses less digits than its factorization.

99145408541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19957758.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 99145408541 in words is "ninety-nine billion, one hundred forty-five million, four hundred eight thousand, five hundred forty-one".