142112250 has 144 divisors (see below), whose sum is σ = 447356520. Its totient is φ = 32457600.

The previous prime is 142112237. The next prime is 142112261. The reversal of 142112250 is 52211241.

It can be written as a sum of positive squares in 4 ways, for example, as 64689849 + 77422401 = 8043^2 + 8799^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 109606 + ... + 110894.

Almost surely, 2^142112250 is an apocalyptic number.

142112250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142112250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223678260).

142112250 is an abundant number, since it is smaller than the sum of its proper divisors (305244270).

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

142112250 is a wasteful number, since it uses less digits than its factorization.

142112250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 142112250 is about 11921.0842627674. The cubic root of 142112250 is about 521.8477778718.

Adding to 142112250 its reverse (52211241), we get a palindrome (194323491).

It can be divided in two parts, 14211 and 2250, that added together give a palindrome (16461).

The spelling of 142112250 in words is "one hundred forty-two million, one hundred twelve thousand, two hundred fifty".