142247210 has 16 divisors (see below), whose sum is σ = 292622976. Its totient is φ = 48770448.

The previous prime is 142247197. The next prime is 142247213. The reversal of 142247210 is 12742241.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142247213) 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, 1015982 + ... + 1016121.

It is an arithmetic number, because the mean of its divisors is an integer number (18288936).

Almost surely, 2^142247210 is an apocalyptic number.

142247210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142247210 is an abundant number, since it is smaller than the sum of its proper divisors (150375766).

142247210 is a wasteful number, since it uses less digits than its factorization.

142247210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032117.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 142247210 is about 11926.7434784186. The cubic root of 142247210 is about 522.0129203165.

Adding to 142247210 its reverse (12742241), we get a palindrome (154989451).

The spelling of 142247210 in words is "one hundred forty-two million, two hundred forty-seven thousand, two hundred ten".