142229972145 has 16 divisors (see below), whose sum is σ = 228544647552. Its totient is φ = 75530421120.

The previous prime is 142229972119. The next prime is 142229972149. The reversal of 142229972145 is 541279922241.

It is not a de Polignac number, because 142229972145 - 2⁶ = 142229972081 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142229972094 and 142229972103.

It is not an unprimeable number, because it can be changed into a prime (142229972149) 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, 20344141 + ... + 20351130.

It is an arithmetic number, because the mean of its divisors is an integer number (14284040472).

Almost surely, 2^142229972145 is an apocalyptic number.

142229972145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142229972145 is a deficient number, since it is larger than the sum of its proper divisors (86314675407).

142229972145 is a wasteful number, since it uses less digits than its factorization.

142229972145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40695512.

The product of its digits is 725760, while the sum is 48.

The spelling of 142229972145 in words is "one hundred forty-two billion, two hundred twenty-nine million, nine hundred seventy-two thousand, one hundred forty-five".