142828123 has 2 divisors, whose sum is σ = 142828124. Its totient is φ = 142828122.

The previous prime is 142828109. The next prime is 142828151. The reversal of 142828123 is 321828241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142828123 - 2¹³ = 142819931 is a prime.

It is not a weakly prime, because it can be changed into another prime (142828193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71414061 + 71414062.

It is an arithmetic number, because the mean of its divisors is an integer number (71414062).

Almost surely, 2^142828123 is an apocalyptic number.

142828123 is a deficient number, since it is larger than the sum of its proper divisors (1).

142828123 is an equidigital number, since it uses as much as digits as its factorization.

142828123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 31.

The square root of 142828123 is about 11951.0720439633. The cubic root of 142828123 is about 522.7225586679.

The spelling of 142828123 in words is "one hundred forty-two million, eight hundred twenty-eight thousand, one hundred twenty-three".