142342106 has 4 divisors (see below), whose sum is σ = 213513162. Its totient is φ = 71171052.

The previous prime is 142342099. The next prime is 142342141. The reversal of 142342106 is 601243241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601243241 = 1109 ⋅542149.

It can be written as a sum of positive squares in only one way, i.e., 138886225 + 3455881 = 11785^2 + 1859^2 .

It is a super-2 number, since 2×142342106² = 40522550281030472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35585525 + ... + 35585528.

Almost surely, 2^142342106 is an apocalyptic number.

142342106 is a deficient number, since it is larger than the sum of its proper divisors (71171056).

142342106 is an equidigital number, since it uses as much as digits as its factorization.

142342106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71171055.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 142342106 is about 11930.7211014255. The cubic root of 142342106 is about 522.1289763162.

Adding to 142342106 its reverse (601243241), we get a palindrome (743585347).

The spelling of 142342106 in words is "one hundred forty-two million, three hundred forty-two thousand, one hundred six".