99126649 has 4 divisors (see below), whose sum is σ = 99163764. Its totient is φ = 99089536.

The previous prime is 99126631. The next prime is 99126659. The reversal of 99126649 is 94662199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94662199 = 19 ⋅4982221.

It can be written as a sum of positive squares in 2 ways, for example, as 56355049 + 42771600 = 7507^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 99126649 - 2⁵ = 99126617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99126599 and 99126608.

It is not an unprimeable number, because it can be changed into a prime (99126659) 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, 14212 + ... + 20005.

It is an arithmetic number, because the mean of its divisors is an integer number (24790941).

Almost surely, 2^99126649 is an apocalyptic number.

It is an amenable number.

99126649 is a deficient number, since it is larger than the sum of its proper divisors (37115).

99126649 is a wasteful number, since it uses less digits than its factorization.

99126649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37114.

The product of its digits is 209952, while the sum is 46.

The square root of 99126649 is about 9956.2366886289. The cubic root of 99126649 is about 462.8036850417.

It can be divided in two parts, 9912 and 6649, that added together give a palindrome (16561).

The spelling of 99126649 in words is "ninety-nine million, one hundred twenty-six thousand, six hundred forty-nine".