142146642041 has 4 divisors (see below), whose sum is σ = 143100646500. Its totient is φ = 141192637584.

The previous prime is 142146642017. The next prime is 142146642059. The reversal of 142146642041 is 140246641241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140246641241 = 7 ⋅20035234463.

It can be written as a sum of positive squares in 2 ways, for example, as 71286864016 + 70859778025 = 266996^2 + 266195^2 .

It is a cyclic number.

It is not a de Polignac number, because 142146642041 - 2¹⁸ = 142146379897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142146641992 and 142146642010.

It is not an unprimeable number, because it can be changed into a prime (142146642061) 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, 477002006 + ... + 477002303.

It is an arithmetic number, because the mean of its divisors is an integer number (35775161625).

Almost surely, 2^142146642041 is an apocalyptic number.

It is an amenable number.

142146642041 is a deficient number, since it is larger than the sum of its proper divisors (954004459).

142146642041 is an equidigital number, since it uses as much as digits as its factorization.

142146642041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954004458.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 142146642041 in words is "one hundred forty-two billion, one hundred forty-six million, six hundred forty-two thousand, forty-one".