142207528 has 16 divisors (see below), whose sum is σ = 278232480. Its totient is φ = 68012208.

The previous prime is 142207501. The next prime is 142207591. The reversal of 142207528 is 825702241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142207528.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386250 + ... + 386617.

It is an arithmetic number, because the mean of its divisors is an integer number (17389530).

Almost surely, 2^142207528 is an apocalyptic number.

It is an amenable number.

142207528 is a deficient number, since it is larger than the sum of its proper divisors (136024952).

142207528 is a wasteful number, since it uses less digits than its factorization.

142207528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772896 (or 772892 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 142207528 is about 11925.0797900895. The cubic root of 142207528 is about 521.9643746820.

Adding to 142207528 its reverse (825702241), we get a palindrome (967909769).

The spelling of 142207528 in words is "one hundred forty-two million, two hundred seven thousand, five hundred twenty-eight".