142420401 has 12 divisors (see below), whose sum is σ = 205824528. Its totient is φ = 94897944.

The previous prime is 142420357. The next prime is 142420423. The reversal of 142420401 is 104024241.

142420401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142420401 - 2¹⁹ = 141896113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142420451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25966 + ... + 30968.

It is an arithmetic number, because the mean of its divisors is an integer number (17152044).

Almost surely, 2^142420401 is an apocalyptic number.

It is an amenable number.

142420401 is a deficient number, since it is larger than the sum of its proper divisors (63404127).

142420401 is a wasteful number, since it uses less digits than its factorization.

142420401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8172 (or 8169 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 142420401 is about 11934.0018853694. The cubic root of 142420401 is about 522.2246907802.

Adding to 142420401 its reverse (104024241), we get a palindrome (246444642).

The spelling of 142420401 in words is "one hundred forty-two million, four hundred twenty thousand, four hundred one".