99143402 has 16 divisors (see below), whose sum is σ = 154641960. Its totient is φ = 47613888.

The previous prime is 99143399. The next prime is 99143413. The reversal of 99143402 is 20434199.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 95863681 + 3279721 = 9791^2 + 1811^2 .

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, 7088 + ... + 15764.

Almost surely, 2^99143402 is an apocalyptic number.

99143402 is a deficient number, since it is larger than the sum of its proper divisors (55498558).

99143402 is a wasteful number, since it uses less digits than its factorization.

99143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 99143402 is about 9957.0779850316. The cubic root of 99143402 is about 462.8297557753.

The spelling of 99143402 in words is "ninety-nine million, one hundred forty-three thousand, four hundred two".