99209144 has 32 divisors (see below), whose sum is σ = 197542800. Its totient is φ = 46548480.

The previous prime is 99209107. The next prime is 99209179. The reversal of 99209144 is 44190299.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 99209098 and 99209107.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56114 + ... + 57854.

Almost surely, 2^99209144 is an apocalyptic number.

It is an amenable number.

99209144 is a deficient number, since it is larger than the sum of its proper divisors (98333656).

99209144 is a wasteful number, since it uses less digits than its factorization.

99209144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 99209144 is about 9960.3787076597. The cubic root of 99209144 is about 462.9320339912.

The spelling of 99209144 in words is "ninety-nine million, two hundred nine thousand, one hundred forty-four".