142420101 has 16 divisors (see below), whose sum is σ = 205970688. Its totient is φ = 87180800.

The previous prime is 142420099. The next prime is 142420111. The reversal of 142420101 is 101024241.

It is a cyclic number.

It is not a de Polignac number, because 142420101 - 2¹ = 142420099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31965 + ... + 36146.

It is an arithmetic number, because the mean of its divisors is an integer number (12873168).

Almost surely, 2^142420101 is an apocalyptic number.

It is an amenable number.

142420101 is a deficient number, since it is larger than the sum of its proper divisors (63550587).

142420101 is a wasteful number, since it uses less digits than its factorization.

142420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68172.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 142420101 is about 11933.9893162345. The cubic root of 142420101 is about 522.2243241017.

Adding to 142420101 its reverse (101024241), we get a palindrome (243444342).

The spelling of 142420101 in words is "one hundred forty-two million, four hundred twenty thousand, one hundred one".