142886250 has 120 divisors (see below), whose sum is σ = 417044628. Its totient is φ = 35136000.

The previous prime is 142886239. The next prime is 142886257. The reversal of 142886250 is 52688241.

142886250 is a `hidden beast` number, since 1 + 4 + 28 + 8 + 625 + 0 = 666.

It can be written as a sum of positive squares in 10 ways, for example, as 6487209 + 136399041 = 2547^2 + 11679^2 .

It is not an unprimeable number, because it can be changed into a prime (142886257) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 145762 + ... + 146738.

Almost surely, 2^142886250 is an apocalyptic number.

142886250 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 142886250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208522314).

142886250 is an abundant number, since it is smaller than the sum of its proper divisors (274158378).

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

142886250 is a wasteful number, since it uses less digits than its factorization.

142886250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 142886250 is about 11953.5036704725. The cubic root of 142886250 is about 522.7934601417.

It can be divided in two parts, 1428 and 86250, that added together give a palindrome (87678).

The spelling of 142886250 in words is "one hundred forty-two million, eight hundred eighty-six thousand, two hundred fifty".