142116121 has 12 divisors (see below), whose sum is σ = 170653440. Its totient is φ = 117883080.

The previous prime is 142116119. The next prime is 142116131. The reversal of 142116121 is 121611241.

It is not a de Polignac number, because 142116121 - 2¹ = 142116119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142116101) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 45261 + ... + 48298.

It is an arithmetic number, because the mean of its divisors is an integer number (14221120).

Almost surely, 2^142116121 is an apocalyptic number.

It is an amenable number.

142116121 is a deficient number, since it is larger than the sum of its proper divisors (28537319).

142116121 is an equidigital number, since it uses as much as digits as its factorization.

142116121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93604 (or 93597 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 142116121 is about 11921.2466210544. The cubic root of 142116121 is about 521.8525160380.

Adding to 142116121 its reverse (121611241), we get a palindrome (263727362).

The spelling of 142116121 in words is "one hundred forty-two million, one hundred sixteen thousand, one hundred twenty-one".