142855423 has 2 divisors, whose sum is σ = 142855424. Its totient is φ = 142855422.

The previous prime is 142855411. The next prime is 142855451. The reversal of 142855423 is 324558241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142855423 - 2²¹ = 140758271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142853423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71427711 + 71427712.

It is an arithmetic number, because the mean of its divisors is an integer number (71427712).

Almost surely, 2^142855423 is an apocalyptic number.

142855423 is a deficient number, since it is larger than the sum of its proper divisors (1).

142855423 is an equidigital number, since it uses as much as digits as its factorization.

142855423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 34.

The square root of 142855423 is about 11952.2141463413. The cubic root of 142855423 is about 522.7558607386.

The spelling of 142855423 in words is "one hundred forty-two million, eight hundred fifty-five thousand, four hundred twenty-three".