99143401 has 4 divisors (see below), whose sum is σ = 113306752. Its totient is φ = 84980052.

The previous prime is 99143399. The next prime is 99143413. The reversal of 99143401 is 10434199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99143401 - 2¹ = 99143399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99143441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7081665 + ... + 7081678.

It is an arithmetic number, because the mean of its divisors is an integer number (28326688).

Almost surely, 2^99143401 is an apocalyptic number.

It is an amenable number.

99143401 is a deficient number, since it is larger than the sum of its proper divisors (14163351).

99143401 is a wasteful number, since it uses less digits than its factorization.

99143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14163350.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 99143401 is about 9957.0779348160. The cubic root of 99143401 is about 462.8297542192.

The spelling of 99143401 in words is "ninety-nine million, one hundred forty-three thousand, four hundred one".