99981182 has 32 divisors (see below), whose sum is σ = 182476800. Its totient is φ = 40106880.

The previous prime is 99981181. The next prime is 99981221. The reversal of 99981182 is 28118999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99981181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46307 + ... + 48417.

It is an arithmetic number, because the mean of its divisors is an integer number (5702400).

Almost surely, 2^99981182 is an apocalyptic number.

99981182 is a deficient number, since it is larger than the sum of its proper divisors (82495618).

99981182 is a wasteful number, since it uses less digits than its factorization.

99981182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336.

The product of its digits is 93312, while the sum is 47.

The square root of 99981182 is about 9999.0590557312. The cubic root of 99981182 is about 464.1297663952.

The spelling of 99981182 in words is "ninety-nine million, nine hundred eighty-one thousand, one hundred eighty-two".