142005248 has 88 divisors (see below), whose sum is σ = 354114624. Its totient is φ = 55296000.

The previous prime is 142005247. The next prime is 142005251. The reversal of 142005248 is 842500241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142005247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77948 + ... + 79748.

Almost surely, 2^142005248 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 142005248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177057312).

142005248 is an abundant number, since it is smaller than the sum of its proper divisors (212109376).

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

142005248 is a wasteful number, since it uses less digits than its factorization.

142005248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 142005248 is about 11916.5954869669. The cubic root of 142005248 is about 521.7167716280.

Adding to 142005248 its reverse (842500241), we get a palindrome (984505489).

The spelling of 142005248 in words is "one hundred forty-two million, five thousand, two hundred forty-eight".