142179123 has 16 divisors (see below), whose sum is σ = 203164416. Its totient is φ = 88212960.

The previous prime is 142179101. The next prime is 142179127. The reversal of 142179123 is 321971241.

It is not a de Polignac number, because 142179123 - 2⁸ = 142178867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142179127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25293 + ... + 30398.

It is an arithmetic number, because the mean of its divisors is an integer number (12697776).

Almost surely, 2^142179123 is an apocalyptic number.

142179123 is a deficient number, since it is larger than the sum of its proper divisors (60985293).

142179123 is a wasteful number, since it uses less digits than its factorization.

142179123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55754.

The product of its digits is 3024, while the sum is 30.

The square root of 142179123 is about 11923.8887532550. Note that the first 3 decimals coincide. The cubic root of 142179123 is about 521.9296194067.

The spelling of 142179123 in words is "one hundred forty-two million, one hundred seventy-nine thousand, one hundred twenty-three".