142140034 has 4 divisors (see below), whose sum is σ = 213210054. Its totient is φ = 71070016.

The previous prime is 142140029. The next prime is 142140041. The reversal of 142140034 is 430041241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430041241 = 7 ⋅61434463.

It can be written as a sum of positive squares in only one way, i.e., 120934009 + 21206025 = 10997^2 + 4605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142139993 and 142140020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35535007 + ... + 35535010.

Almost surely, 2^142140034 is an apocalyptic number.

142140034 is a deficient number, since it is larger than the sum of its proper divisors (71070020).

142140034 is an equidigital number, since it uses as much as digits as its factorization.

142140034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71070019.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142140034 is about 11922.2495360565. The cubic root of 142140034 is about 521.8817840274.

Adding to 142140034 its reverse (430041241), we get a palindrome (572181275).

The spelling of 142140034 in words is "one hundred forty-two million, one hundred forty thousand, thirty-four".