142154430222001 has 4 divisors (see below), whose sum is σ = 145460347203952. Its totient is φ = 138848513240052.

The previous prime is 142154430221893. The next prime is 142154430222019. The reversal of 142154430222001 is 100222034451241.

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 142154430222001 - 2⁴¹ = 139955406966449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142154430222071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652958490911 + ... + 1652958490996.

It is an arithmetic number, because the mean of its divisors is an integer number (36365086800988).

Almost surely, 2^{142154430222001} is an apocalyptic number.

It is an amenable number.

142154430222001 is a deficient number, since it is larger than the sum of its proper divisors (3305916981951).

142154430222001 is an equidigital number, since it uses as much as digits as its factorization.

142154430222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305916981950.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 142154430222001 its reverse (100222034451241), we get a palindrome (242376464673242).

The spelling of 142154430222001 in words is "one hundred forty-two trillion, one hundred fifty-four billion, four hundred thirty million, two hundred twenty-two thousand, one".