142403201 has 2 divisors, whose sum is σ = 142403202. Its totient is φ = 142403200.

The previous prime is 142403171. The next prime is 142403221. The reversal of 142403201 is 102304241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139594225 + 2808976 = 11815^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 142403201 - 2¹⁸ = 142141057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142403201.

It is not a weakly prime, because it can be changed into another prime (142403221) by changing a digit.

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 as a sum of consecutive naturals, namely, 71201600 + 71201601.

It is an arithmetic number, because the mean of its divisors is an integer number (71201601).

Almost surely, 2^142403201 is an apocalyptic number.

It is an amenable number.

142403201 is a deficient number, since it is larger than the sum of its proper divisors (1).

142403201 is an equidigital number, since it uses as much as digits as its factorization.

142403201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142403201 is about 11933.2812335920. The cubic root of 142403201 is about 522.2036670452.

Adding to 142403201 its reverse (102304241), we get a palindrome (244707442).

The spelling of 142403201 in words is "one hundred forty-two million, four hundred three thousand, two hundred one".