99441231 has 8 divisors (see below), whose sum is σ = 139566720. Its totient is φ = 62804952.

The previous prime is 99441229. The next prime is 99441233. The reversal of 99441231 is 13214499.

It is an interprime number because it is at equal distance from previous prime (99441229) and next prime (99441233).

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

It is not a de Polignac number, because 99441231 - 2¹ = 99441229 is a prime.

It is a super-2 number, since 2×99441231² = 19777116845590722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99441192 and 99441201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99441233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872235 + ... + 872348.

It is an arithmetic number, because the mean of its divisors is an integer number (17445840).

Almost surely, 2^99441231 is an apocalyptic number.

99441231 is a deficient number, since it is larger than the sum of its proper divisors (40125489).

99441231 is a wasteful number, since it uses less digits than its factorization.

99441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744605.

The product of its digits is 7776, while the sum is 33.

The square root of 99441231 is about 9972.0224127305. The cubic root of 99441231 is about 463.2927427938.

It can be divided in two parts, 9944 and 1231, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 99441231 in words is "ninety-nine million, four hundred forty-one thousand, two hundred thirty-one".