142555512 has 64 divisors (see below), whose sum is σ = 397094400. Its totient is φ = 42275840.

The previous prime is 142555507. The next prime is 142555519. The reversal of 142555512 is 215555241.

It is a self number, because there is not a number n which added to its sum of digits gives 142555512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142555519) 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, 6664 + ... + 18152.

It is an arithmetic number, because the mean of its divisors is an integer number (6204600).

Almost surely, 2^142555512 is an apocalyptic number.

142555512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142555512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198547200).

142555512 is an abundant number, since it is smaller than the sum of its proper divisors (254538888).

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

142555512 is a wasteful number, since it uses less digits than its factorization.

142555512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11556 (or 11552 counting only the distinct ones).

The product of its digits is 10000, while the sum is 30.

The square root of 142555512 is about 11939.6613017288. The cubic root of 142555512 is about 522.3897794873.

The spelling of 142555512 in words is "one hundred forty-two million, five hundred fifty-five thousand, five hundred twelve".