142381566129 has 32 divisors (see below), whose sum is σ = 208649548800. Its totient is φ = 85647384000.

The previous prime is 142381566113. The next prime is 142381566137. The reversal of 142381566129 is 921665183241.

It is not a de Polignac number, because 142381566129 - 2⁴ = 142381566113 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142381516129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6152422 + ... + 6175520.

It is an arithmetic number, because the mean of its divisors is an integer number (6520298400).

Almost surely, 2^142381566129 is an apocalyptic number.

It is an amenable number.

142381566129 is a deficient number, since it is larger than the sum of its proper divisors (66267982671).

142381566129 is a wasteful number, since it uses less digits than its factorization.

142381566129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24501.

The product of its digits is 622080, while the sum is 48.

The spelling of 142381566129 in words is "one hundred forty-two billion, three hundred eighty-one million, five hundred sixty-six thousand, one hundred twenty-nine".