99531942 has 16 divisors (see below), whose sum is σ = 201584640. Its totient is φ = 32757192.

The previous prime is 99531941. The next prime is 99531967. The reversal of 99531942 is 24913599.

It is a junction number, because it is equal to n+sod(n) for n = 99531894 and 99531903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99531941) 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, 104518 + ... + 105465.

It is an arithmetic number, because the mean of its divisors is an integer number (12599040).

Almost surely, 2^99531942 is an apocalyptic number.

99531942 is an abundant number, since it is smaller than the sum of its proper divisors (102052698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99531942 is a wasteful number, since it uses less digits than its factorization.

99531942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210067.

The product of its digits is 87480, while the sum is 42.

The square root of 99531942 is about 9976.5696509371. The cubic root of 99531942 is about 463.4335729616.

The spelling of 99531942 in words is "ninety-nine million, five hundred thirty-one thousand, nine hundred forty-two".