99147061 has 18 divisors (see below), whose sum is σ = 110358150. Its totient is φ = 89032320.

The previous prime is 99147029. The next prime is 99147071. The reversal of 99147061 is 16074199.

It can be written as a sum of positive squares in 9 ways, for example, as 87796900 + 11350161 = 9370^2 + 3369^2 .

It is not a de Polignac number, because 99147061 - 2⁵ = 99147029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99147061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99147011) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 283915 + ... + 284263.

Almost surely, 2^99147061 is an apocalyptic number.

It is an amenable number.

99147061 is a deficient number, since it is larger than the sum of its proper divisors (11211089).

99147061 is a wasteful number, since it uses less digits than its factorization.

99147061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 99147061 is about 9957.2617219796. The cubic root of 99147061 is about 462.8354494581.

The spelling of 99147061 in words is "ninety-nine million, one hundred forty-seven thousand, sixty-one".