99159493 has 4 divisors (see below), whose sum is σ = 99321868. Its totient is φ = 98997120.

The previous prime is 99159481. The next prime is 99159517. The reversal of 99159493 is 39495199.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15382084 + 83777409 = 3922^2 + 9153^2 .

It is a cyclic number.

It is not a de Polignac number, because 99159493 - 2⁹ = 99158981 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 (99159413) 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, 80268 + ... + 81493.

It is an arithmetic number, because the mean of its divisors is an integer number (24830467).

Almost surely, 2^99159493 is an apocalyptic number.

It is an amenable number.

99159493 is a deficient number, since it is larger than the sum of its proper divisors (162375).

99159493 is a wasteful number, since it uses less digits than its factorization.

99159493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162374.

The product of its digits is 393660, while the sum is 49.

The square root of 99159493 is about 9957.8859704257. The cubic root of 99159493 is about 462.8547935509.

The spelling of 99159493 in words is "ninety-nine million, one hundred fifty-nine thousand, four hundred ninety-three".