142203613 has 2 divisors, whose sum is σ = 142203614. Its totient is φ = 142203612.

The previous prime is 142203571. The next prime is 142203637. The reversal of 142203613 is 316302241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133125444 + 9078169 = 11538^2 + 3013^2 .

It is an emirp because it is prime and its reverse (316302241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142203613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142203643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71101806 + 71101807.

It is an arithmetic number, because the mean of its divisors is an integer number (71101807).

Almost surely, 2^142203613 is an apocalyptic number.

It is an amenable number.

142203613 is a deficient number, since it is larger than the sum of its proper divisors (1).

142203613 is an equidigital number, since it uses as much as digits as its factorization.

142203613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 142203613 is about 11924.9156391146. The cubic root of 142203613 is about 521.9595847122.

Adding to 142203613 its reverse (316302241), we get a palindrome (458505854).

The spelling of 142203613 in words is "one hundred forty-two million, two hundred three thousand, six hundred thirteen".