142515240520 has 64 divisors (see below), whose sum is σ = 327576960000. Its totient is φ = 55776994560.

The previous prime is 142515240487. The next prime is 142515240529. The reversal of 142515240520 is 25042515241.

It is not an unprimeable number, because it can be changed into a prime (142515240529) 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, 8020606 + ... + 8038354.

It is an arithmetic number, because the mean of its divisors is an integer number (5118390000).

Almost surely, 2^142515240520 is an apocalyptic number.

142515240520 is a gapful number since it is divisible by the number (10) 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 142515240520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163788480000).

142515240520 is an abundant number, since it is smaller than the sum of its proper divisors (185061719480).

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

142515240520 is a wasteful number, since it uses less digits than its factorization.

142515240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22078 (or 22074 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 142515240520 its reverse (25042515241), we get a palindrome (167557755761).

The spelling of 142515240520 in words is "one hundred forty-two billion, five hundred fifteen million, two hundred forty thousand, five hundred twenty".