99007144 has 8 divisors (see below), whose sum is σ = 185638410. Its totient is φ = 49503568.

The previous prime is 99007141. The next prime is 99007147. The reversal of 99007144 is 44170099.

It is an interprime number because it is at equal distance from previous prime (99007141) and next prime (99007147).

It can be written as a sum of positive squares in only one way, i.e., 69522244 + 29484900 = 8338^2 + 5430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (99007141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6187939 + ... + 6187954.

Almost surely, 2^99007144 is an apocalyptic number.

It is an amenable number.

99007144 is a deficient number, since it is larger than the sum of its proper divisors (86631266).

99007144 is a wasteful number, since it uses less digits than its factorization.

99007144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12375899 (or 12375895 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 99007144 is about 9950.2333640975. The cubic root of 99007144 is about 462.6176281282.

The spelling of 99007144 in words is "ninety-nine million, seven thousand, one hundred forty-four".