142406142 has 16 divisors (see below), whose sum is σ = 285048720. Its totient is φ = 47429312.

The previous prime is 142406107. The next prime is 142406149. The reversal of 142406142 is 241604241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142406149) 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, 1473 + ... + 16940.

It is an arithmetic number, because the mean of its divisors is an integer number (17815545).

Almost surely, 2^142406142 is an apocalyptic number.

142406142 is an abundant number, since it is smaller than the sum of its proper divisors (142642578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142406142 is a wasteful number, since it uses less digits than its factorization.

142406142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19707.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 142406142 is about 11933.4044597508. The cubic root of 142406142 is about 522.2072619794.

The spelling of 142406142 in words is "one hundred forty-two million, four hundred six thousand, one hundred forty-two".