142102823 has 2 divisors, whose sum is σ = 142102824. Its totient is φ = 142102822.

The previous prime is 142102801. The next prime is 142102861. The reversal of 142102823 is 328201241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142102823 - 2⁶ = 142102759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142101823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71051411 + 71051412.

It is an arithmetic number, because the mean of its divisors is an integer number (71051412).

Almost surely, 2^142102823 is an apocalyptic number.

142102823 is a deficient number, since it is larger than the sum of its proper divisors (1).

142102823 is an equidigital number, since it uses as much as digits as its factorization.

142102823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 142102823 is about 11920.6888643232. The cubic root of 142102823 is about 521.8362387122.

The spelling of 142102823 in words is "one hundred forty-two million, one hundred two thousand, eight hundred twenty-three".