9444142051 has 4 divisors (see below), whose sum is σ = 9444387400. Its totient is φ = 9443896704.

The previous prime is 9444142009. The next prime is 9444142063. The reversal of 9444142051 is 1502414449.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9444142051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9444141998 and 9444142016.

It is not an unprimeable number, because it can be changed into a prime (9444142151) 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, 50961 + ... + 146578.

It is an arithmetic number, because the mean of its divisors is an integer number (2361096850).

Almost surely, 2^9444142051 is an apocalyptic number.

9444142051 is a deficient number, since it is larger than the sum of its proper divisors (245349).

9444142051 is a wasteful number, since it uses less digits than its factorization.

9444142051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245348.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 9444142051 is about 97180.9757668650. The cubic root of 9444142051 is about 2113.7526751779.

The spelling of 9444142051 in words is "nine billion, four hundred forty-four million, one hundred forty-two thousand, fifty-one".