99143942 has 16 divisors (see below), whose sum is σ = 153038160. Its totient is φ = 48136608.

The previous prime is 99143927. The next prime is 99143959. The reversal of 99143942 is 24934199.

It is a self number, because there is not a number n which added to its sum of digits gives 99143942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49109 + ... + 51087.

It is an arithmetic number, because the mean of its divisors is an integer number (9564885).

Almost surely, 2^99143942 is an apocalyptic number.

99143942 is a deficient number, since it is larger than the sum of its proper divisors (53894218).

99143942 is a wasteful number, since it uses less digits than its factorization.

99143942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its digits is 69984, while the sum is 41.

The square root of 99143942 is about 9957.1051013836. The cubic root of 99143942 is about 462.8305960653.

The spelling of 99143942 in words is "ninety-nine million, one hundred forty-three thousand, nine hundred forty-two".