142247600 has 90 divisors (see below), whose sum is σ = 375770220. Its totient is φ = 51708800.

The previous prime is 142247557. The next prime is 142247657. The reversal of 142247600 is 6742241.

It is a self number, because there is not a number n which added to its sum of digits gives 142247600.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46931 + ... + 49869.

Almost surely, 2^142247600 is an apocalyptic number.

142247600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142247600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187885110).

142247600 is an abundant number, since it is smaller than the sum of its proper divisors (233522620).

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

142247600 is a wasteful number, since it uses less digits than its factorization.

142247600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 142247600 is about 11926.7598282182. The cubic root of 142247600 is about 522.0133973847.

Adding to 142247600 its reverse (6742241), we get a palindrome (148989841).

It can be divided in two parts, 142 and 247600, that added together give a palindrome (247742).

The spelling of 142247600 in words is "one hundred forty-two million, two hundred forty-seven thousand, six hundred".