99124509 has 8 divisors (see below), whose sum is σ = 144181152. Its totient is φ = 60075440.

The previous prime is 99124507. The next prime is 99124513. The reversal of 99124509 is 90542199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99124509 - 2¹ = 99124507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99124507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501854 + ... + 1501919.

It is an arithmetic number, because the mean of its divisors is an integer number (18022644).

Almost surely, 2^99124509 is an apocalyptic number.

It is an amenable number.

99124509 is a deficient number, since it is larger than the sum of its proper divisors (45056643).

99124509 is a wasteful number, since it uses less digits than its factorization.

99124509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003787.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 99124509 is about 9956.1292177231. The cubic root of 99124509 is about 462.8003545985.

It can be divided in two parts, 99 and 124509, that multiplied together give a cube (12326391 = 231³).

The spelling of 99124509 in words is "ninety-nine million, one hundred twenty-four thousand, five hundred nine".