142136048 has 40 divisors (see below), whose sum is σ = 293887440. Its totient is φ = 66360320.

The previous prime is 142136041. The next prime is 142136051. The reversal of 142136048 is 840631241.

It is a super-2 number, since 2×142136048² = 40405312282116608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142136048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142136041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33638 + ... + 37626.

It is an arithmetic number, because the mean of its divisors is an integer number (7347186).

Almost surely, 2^142136048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142136048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146943720).

142136048 is an abundant number, since it is smaller than the sum of its proper divisors (151751392).

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

142136048 is a wasteful number, since it uses less digits than its factorization.

142136048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145 (or 4139 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 142136048 is about 11922.0823684455. The cubic root of 142136048 is about 521.8769056452.

Adding to 142136048 its reverse (840631241), we get a palindrome (982767289).

The spelling of 142136048 in words is "one hundred forty-two million, one hundred thirty-six thousand, forty-eight".