99158047 has 4 divisors (see below), whose sum is σ = 102577320. Its totient is φ = 95738776.

The previous prime is 99158029. The next prime is 99158051. The reversal of 99158047 is 74085199.

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

It is a cyclic number.

It is not a de Polignac number, because 99158047 - 2²³ = 90769439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99157994 and 99158012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99158447) 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 3 ways as a sum of consecutive naturals, for example, 1709593 + ... + 1709650.

It is an arithmetic number, because the mean of its divisors is an integer number (25644330).

Almost surely, 2^99158047 is an apocalyptic number.

99158047 is a deficient number, since it is larger than the sum of its proper divisors (3419273).

99158047 is a wasteful number, since it uses less digits than its factorization.

99158047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419272.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 99158047 is about 9957.8133643888. The cubic root of 99158047 is about 462.8525436695.

The spelling of 99158047 in words is "ninety-nine million, one hundred fifty-eight thousand, forty-seven".