142101001 has 4 divisors (see below), whose sum is σ = 162401152. Its totient is φ = 121800852.

The previous prime is 142100999. The next prime is 142101007. The reversal of 142101001 is 100101241.

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 142101001 - 2¹ = 142100999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142101007) 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, 10150065 + ... + 10150078.

It is an arithmetic number, because the mean of its divisors is an integer number (40600288).

Almost surely, 2^142101001 is an apocalyptic number.

It is an amenable number.

142101001 is a deficient number, since it is larger than the sum of its proper divisors (20300151).

142101001 is an equidigital number, since it uses as much as digits as its factorization.

142101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300150.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 142101001 is about 11920.6124423202. The cubic root of 142101001 is about 521.8340084265.

Adding to 142101001 its reverse (100101241), we get a palindrome (242202242).

The spelling of 142101001 in words is "one hundred forty-two million, one hundred one thousand, one".