99261249 has 8 divisors (see below), whose sum is σ = 140133600. Its totient is φ = 62281536.

The previous prime is 99261247. The next prime is 99261271. The reversal of 99261249 is 94216299.

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

It is not a de Polignac number, because 99261249 - 2¹ = 99261247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99261249.

It is not an unprimeable number, because it can be changed into a prime (99261247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973099 + ... + 973200.

It is an arithmetic number, because the mean of its divisors is an integer number (17516700).

Almost surely, 2^99261249 is an apocalyptic number.

It is an amenable number.

99261249 is a deficient number, since it is larger than the sum of its proper divisors (40872351).

99261249 is a wasteful number, since it uses less digits than its factorization.

99261249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946319.

The product of its digits is 69984, while the sum is 42.

The square root of 99261249 is about 9962.9939777157. The cubic root of 99261249 is about 463.0130643313.

It can be divided in two parts, 9926 and 1249, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 99261249 in words is "ninety-nine million, two hundred sixty-one thousand, two hundred forty-nine".