142730113 has 16 divisors (see below), whose sum is σ = 155111760. Its totient is φ = 130830336.

The previous prime is 142730099. The next prime is 142730123. The reversal of 142730113 is 311037241.

It can be written as a sum of positive squares in 8 ways, for example, as 452929 + 142277184 = 673^2 + 11928^2 .

It is a cyclic number.

It is not a de Polignac number, because 142730113 - 2¹³ = 142721921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142730123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140953 + ... + 141961.

It is an arithmetic number, because the mean of its divisors is an integer number (9694485).

Almost surely, 2^142730113 is an apocalyptic number.

It is an amenable number.

142730113 is a deficient number, since it is larger than the sum of its proper divisors (12381647).

142730113 is a wasteful number, since it uses less digits than its factorization.

142730113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 142730113 is about 11946.9708713129. The cubic root of 142730113 is about 522.6029655980.

Adding to 142730113 its reverse (311037241), we get a palindrome (453767354).

The spelling of 142730113 in words is "one hundred forty-two million, seven hundred thirty thousand, one hundred thirteen".