142464142 has 4 divisors (see below), whose sum is σ = 213696216. Its totient is φ = 71232070.

The previous prime is 142464137. The next prime is 142464163. The reversal of 142464142 is 241464241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241464241 = 229 ⋅1054429.

It is a self number, because there is not a number n which added to its sum of digits gives 142464142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35616034 + ... + 35616037.

It is an arithmetic number, because the mean of its divisors is an integer number (53424054).

Almost surely, 2^142464142 is an apocalyptic number.

142464142 is a deficient number, since it is larger than the sum of its proper divisors (71232074).

142464142 is an equidigital number, since it uses as much as digits as its factorization.

142464142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71232073.

The product of its digits is 6144, while the sum is 28.

The square root of 142464142 is about 11935.8343654727. The cubic root of 142464142 is about 522.2781482248.

Subtracting 142464142 from its reverse (241464241), we obtain a palindrome (99000099).

The spelling of 142464142 in words is "one hundred forty-two million, four hundred sixty-four thousand, one hundred forty-two".