142769747 has 2 divisors, whose sum is σ = 142769748. Its totient is φ = 142769746.

The previous prime is 142769719. The next prime is 142769789. The reversal of 142769747 is 747967241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142769747 - 2¹⁰ = 142768723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142769797) 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 as a sum of consecutive naturals, namely, 71384873 + 71384874.

It is an arithmetic number, because the mean of its divisors is an integer number (71384874).

Almost surely, 2^142769747 is an apocalyptic number.

142769747 is a deficient number, since it is larger than the sum of its proper divisors (1).

142769747 is an equidigital number, since it uses as much as digits as its factorization.

142769747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 142769747 is about 11948.6295030016. The cubic root of 142769747 is about 522.6513341088.

The spelling of 142769747 in words is "one hundred forty-two million, seven hundred sixty-nine thousand, seven hundred forty-seven".