142940527 has 4 divisors (see below), whose sum is σ = 143397520. Its totient is φ = 142483536.

The previous prime is 142940503. The next prime is 142940531. The reversal of 142940527 is 725049241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142940527 - 2²⁷ = 8722799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142940492 and 142940501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142940327) by changing a digit.

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, 228027 + ... + 228652.

It is an arithmetic number, because the mean of its divisors is an integer number (35849380).

Almost surely, 2^142940527 is an apocalyptic number.

142940527 is a deficient number, since it is larger than the sum of its proper divisors (456993).

142940527 is an equidigital number, since it uses as much as digits as its factorization.

142940527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456992.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 142940527 is about 11955.7737934439. The cubic root of 142940527 is about 522.8596481489.

Adding to 142940527 its reverse (725049241), we get a palindrome (867989768).

The spelling of 142940527 in words is "one hundred forty-two million, nine hundred forty thousand, five hundred twenty-seven".