142111161 has 12 divisors (see below), whose sum is σ = 211893760. Its totient is φ = 91684440.

The previous prime is 142111159. The next prime is 142111163. The reversal of 142111161 is 161111241.

142111161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142111159) and next prime (142111163).

It is not a de Polignac number, because 142111161 - 2¹ = 142111159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142111163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254401 + ... + 254958.

Almost surely, 2^142111161 is an apocalyptic number.

It is an amenable number.

142111161 is a deficient number, since it is larger than the sum of its proper divisors (69782599).

142111161 is a wasteful number, since it uses less digits than its factorization.

142111161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509396 (or 509393 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

The square root of 142111161 is about 11921.0385873044. The cubic root of 142111161 is about 521.8464449028.

The spelling of 142111161 in words is "one hundred forty-two million, one hundred eleven thousand, one hundred sixty-one".