142001048 has 64 divisors (see below), whose sum is σ = 311592960. Its totient is φ = 59417856.

The previous prime is 142001047. The next prime is 142001059. The reversal of 142001048 is 840100241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001047) 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 15 ways as a sum of consecutive naturals, for example, 636665 + ... + 636887.

It is an arithmetic number, because the mean of its divisors is an integer number (4868640).

Almost surely, 2^142001048 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 142001048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155796480).

142001048 is an abundant number, since it is smaller than the sum of its proper divisors (169591912).

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

142001048 is a wasteful number, since it uses less digits than its factorization.

142001048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 142001048 is about 11916.4192608350. The cubic root of 142001048 is about 521.7116280809.

Adding to 142001048 its reverse (840100241), we get a palindrome (982101289).

The spelling of 142001048 in words is "one hundred forty-two million, one thousand, forty-eight".