99143429 has 16 divisors (see below), whose sum is σ = 124440576. Its totient is φ = 76734000.

The previous prime is 99143413. The next prime is 99143441. The reversal of 99143429 is 92434199.

It is not a de Polignac number, because 99143429 - 2⁴ = 99143413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99143329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7364 + ... + 15890.

It is an arithmetic number, because the mean of its divisors is an integer number (7777536).

Almost surely, 2^99143429 is an apocalyptic number.

It is an amenable number.

99143429 is a deficient number, since it is larger than the sum of its proper divisors (25297147).

99143429 is a wasteful number, since it uses less digits than its factorization.

99143429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8696.

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

The square root of 99143429 is about 9957.0793408509. The cubic root of 99143429 is about 462.8297977899.

The spelling of 99143429 in words is "ninety-nine million, one hundred forty-three thousand, four hundred twenty-nine".