142247130 has 32 divisors (see below), whose sum is σ = 341760384. Its totient is φ = 37891776.

The previous prime is 142247101. The next prime is 142247153. The reversal of 142247130 is 31742241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142247130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34752 + ... + 38628.

It is an arithmetic number, because the mean of its divisors is an integer number (10680012).

Almost surely, 2^142247130 is an apocalyptic number.

142247130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142247130 is an abundant number, since it is smaller than the sum of its proper divisors (199513254).

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

142247130 is a wasteful number, since it uses less digits than its factorization.

142247130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 142247130 is about 11926.7401246107. The cubic root of 142247130 is about 522.0128224563.

Adding to 142247130 its reverse (31742241), we get a palindrome (173989371).

The spelling of 142247130 in words is "one hundred forty-two million, two hundred forty-seven thousand, one hundred thirty".