142140250 has 32 divisors (see below), whose sum is σ = 304102656. Its totient is φ = 48733200.

The previous prime is 142140227. The next prime is 142140259. The reversal of 142140250 is 52041241.

142140250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142140259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38862 + ... + 42361.

It is an arithmetic number, because the mean of its divisors is an integer number (9503208).

Almost surely, 2^142140250 is an apocalyptic number.

142140250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142140250 is an abundant number, since it is smaller than the sum of its proper divisors (161962406).

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

142140250 is an equidigital number, since it uses as much as digits as its factorization.

142140250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81247 (or 81237 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 142140250 is about 11922.2585947462. The cubic root of 142140250 is about 521.8820483827.

Adding to 142140250 its reverse (52041241), we get a palindrome (194181491).

Subtracting from 142140250 its reverse (52041241), we obtain a palindrome (90099009).

The spelling of 142140250 in words is "one hundred forty-two million, one hundred forty thousand, two hundred fifty".