142103525 has 6 divisors (see below), whose sum is σ = 176208402. Its totient is φ = 113682800.

The previous prime is 142103503. The next prime is 142103531. The reversal of 142103525 is 525301241.

142103525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 37368769 + 104734756 = 6113^2 + 10234^2 .

It is a de Polignac number, because none of the positive numbers 2^k-142103525 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142103525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2842046 + ... + 2842095.

It is an arithmetic number, because the mean of its divisors is an integer number (29368067).

Almost surely, 2^142103525 is an apocalyptic number.

It is an amenable number.

142103525 is a deficient number, since it is larger than the sum of its proper divisors (34104877).

142103525 is an equidigital number, since it uses as much as digits as its factorization.

142103525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684151 (or 5684146 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142103525 is about 11920.7183088940. The cubic root of 142103525 is about 521.8370980159.

Adding to 142103525 its reverse (525301241), we get a palindrome (667404766).

The spelling of 142103525 in words is "one hundred forty-two million, one hundred three thousand, five hundred twenty-five".