142231001 has 8 divisors (see below), whose sum is σ = 155325600. Its totient is φ = 129163840.

The previous prime is 142230973. The next prime is 142231013. The reversal of 142231001 is 100132241.

142231001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142231001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142231021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865 + ... + 17553.

It is an arithmetic number, because the mean of its divisors is an integer number (19415700).

Almost surely, 2^142231001 is an apocalyptic number.

142231001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142231001 is a deficient number, since it is larger than the sum of its proper divisors (13094599).

142231001 is a wasteful number, since it uses less digits than its factorization.

142231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13719.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 142231001 is about 11926.0639357669. The cubic root of 142231001 is about 521.9930918577.

Adding to 142231001 its reverse (100132241), we get a palindrome (242363242).

It can be divided in two parts, 1422 and 31001, that added together give a palindrome (32423).

The spelling of 142231001 in words is "one hundred forty-two million, two hundred thirty-one thousand, one".