142242621361 has 4 divisors (see below), whose sum is σ = 142249452352. Its totient is φ = 142235790372.

The previous prime is 142242621349. The next prime is 142242621371. The reversal of 142242621361 is 163126242241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142242621361 - 2¹³ = 142242613169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142242621371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3384165 + ... + 3425938.

It is an arithmetic number, because the mean of its divisors is an integer number (35562363088).

Almost surely, 2^142242621361 is an apocalyptic number.

It is an amenable number.

142242621361 is a deficient number, since it is larger than the sum of its proper divisors (6830991).

142242621361 is an equidigital number, since it uses as much as digits as its factorization.

142242621361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830990.

The product of its digits is 27648, while the sum is 34.

The spelling of 142242621361 in words is "one hundred forty-two billion, two hundred forty-two million, six hundred twenty-one thousand, three hundred sixty-one".