142440141 has 8 divisors (see below), whose sum is σ = 196469280. Its totient is φ = 91685552.

The previous prime is 142440119. The next prime is 142440143. The reversal of 142440141 is 141044241.

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

It is a cyclic number.

It is not a de Polignac number, because 142440141 - 2⁷ = 142440013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142440143) 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 7 ways as a sum of consecutive naturals, for example, 818535 + ... + 818708.

It is an arithmetic number, because the mean of its divisors is an integer number (24558660).

Almost surely, 2^142440141 is an apocalyptic number.

It is an amenable number.

142440141 is a deficient number, since it is larger than the sum of its proper divisors (54029139).

142440141 is a wasteful number, since it uses less digits than its factorization.

142440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637275.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 142440141 is about 11934.8289053509. The cubic root of 142440141 is about 522.2488170970.

Adding to 142440141 its reverse (141044241), we get a palindrome (283484382).

The spelling of 142440141 in words is "one hundred forty-two million, four hundred forty thousand, one hundred forty-one".