99045071 has 4 divisors (see below), whose sum is σ = 100440144. Its totient is φ = 97650000.

The previous prime is 99045049. The next prime is 99045083. The reversal of 99045071 is 17054099.

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 99045071 - 2⁶ = 99045007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99045371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697430 + ... + 697571.

It is an arithmetic number, because the mean of its divisors is an integer number (25110036).

Almost surely, 2^99045071 is an apocalyptic number.

99045071 is a deficient number, since it is larger than the sum of its proper divisors (1395073).

99045071 is a wasteful number, since it uses less digits than its factorization.

99045071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395072.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 99045071 is about 9952.1390163120. The cubic root of 99045071 is about 462.6766927510.

The spelling of 99045071 in words is "ninety-nine million, forty-five thousand, seventy-one".