142775248 has 120 divisors (see below), whose sum is σ = 367280064. Its totient is φ = 52224000.

The previous prime is 142775239. The next prime is 142775261. The reversal of 142775248 is 842577241.

It is a self number, because there is not a number n which added to its sum of digits gives 142775248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355848 + ... + 356248.

Almost surely, 2^142775248 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 142775248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183640032).

142775248 is an abundant number, since it is smaller than the sum of its proper divisors (224504816).

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

142775248 is a wasteful number, since it uses less digits than its factorization.

142775248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 438 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 142775248 is about 11948.8596945483. The cubic root of 142775248 is about 522.6580467075.

The spelling of 142775248 in words is "one hundred forty-two million, seven hundred seventy-five thousand, two hundred forty-eight".