142111345 has 8 divisors (see below), whose sum is σ = 174499776. Its totient is φ = 111044976.

The previous prime is 142111331. The next prime is 142111357. The reversal of 142111345 is 543111241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142111345 - 2⁹ = 142110833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330277 + ... + 330706.

It is an arithmetic number, because the mean of its divisors is an integer number (21812472).

Almost surely, 2^142111345 is an apocalyptic number.

It is an amenable number.

142111345 is a deficient number, since it is larger than the sum of its proper divisors (32388431).

142111345 is an equidigital number, since it uses as much as digits as its factorization.

142111345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661031.

The product of its digits is 480, while the sum is 22.

The square root of 142111345 is about 11921.0463047503. The cubic root of 142111345 is about 521.8466701248.

Adding to 142111345 its reverse (543111241), we get a palindrome (685222586).

The spelling of 142111345 in words is "one hundred forty-two million, one hundred eleven thousand, three hundred forty-five".