142302141 has 6 divisors (see below), whose sum is σ = 205547550. Its totient is φ = 94868088.

The previous prime is 142302137. The next prime is 142302151. The reversal of 142302141 is 141203241.

It can be written as a sum of positive squares in only one way, i.e., 140422500 + 1879641 = 11850^2 + 1371^2 .

It is not a de Polignac number, because 142302141 - 2² = 142302137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142302151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7905666 + ... + 7905683.

It is an arithmetic number, because the mean of its divisors is an integer number (34257925).

Almost surely, 2^142302141 is an apocalyptic number.

It is an amenable number.

142302141 is a deficient number, since it is larger than the sum of its proper divisors (63245409).

142302141 is a wasteful number, since it uses less digits than its factorization.

142302141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15811355 (or 15811352 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142302141 is about 11929.0461060388. The cubic root of 142302141 is about 522.0801061719.

Adding to 142302141 its reverse (141203241), we get a palindrome (283505382).

The spelling of 142302141 in words is "one hundred forty-two million, three hundred two thousand, one hundred forty-one".