9949022143 has 4 divisors (see below), whose sum is σ = 9949232520. Its totient is φ = 9948811768.

The previous prime is 9949022053. The next prime is 9949022179. The reversal of 9949022143 is 3412209499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412209499 = 211 ⋅16171609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9949022143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9949022143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949022243) 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, 2496 + ... + 141082.

It is an arithmetic number, because the mean of its divisors is an integer number (2487308130).

Almost surely, 2^9949022143 is an apocalyptic number.

9949022143 is a deficient number, since it is larger than the sum of its proper divisors (210377).

9949022143 is a wasteful number, since it uses less digits than its factorization.

9949022143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210376.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 9949022143 is about 99744.7850416251. The cubic root of 9949022143 is about 2150.7675026579.

The spelling of 9949022143 in words is "nine billion, nine hundred forty-nine million, twenty-two thousand, one hundred forty-three".