142007142 has 16 divisors (see below), whose sum is σ = 293808240. Its totient is φ = 45703392.

The previous prime is 142007101. The next prime is 142007143. The reversal of 142007142 is 241700241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142007143) 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, 407893 + ... + 408240.

It is an arithmetic number, because the mean of its divisors is an integer number (18363015).

Almost surely, 2^142007142 is an apocalyptic number.

142007142 is an abundant number, since it is smaller than the sum of its proper divisors (151801098).

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

142007142 is a wasteful number, since it uses less digits than its factorization.

142007142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816167.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 142007142 is about 11916.6749557081. The cubic root of 142007142 is about 521.7190910896.

Adding to 142007142 its reverse (241700241), we get a palindrome (383707383).

The spelling of 142007142 in words is "one hundred forty-two million, seven thousand, one hundred forty-two".