142204431157 has 2 divisors, whose sum is σ = 142204431158. Its totient is φ = 142204431156.

The previous prime is 142204431113. The next prime is 142204431167. The reversal of 142204431157 is 751134402241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132084272356 + 10120158801 = 363434^2 + 100599^2 .

It is an emirp because it is prime and its reverse (751134402241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142204431157 - 2⁷ = 142204431029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142204431167) 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, 71102215578 + 71102215579.

It is an arithmetic number, because the mean of its divisors is an integer number (71102215579).

Almost surely, 2^142204431157 is an apocalyptic number.

It is an amenable number.

142204431157 is a deficient number, since it is larger than the sum of its proper divisors (1).

142204431157 is an equidigital number, since it uses as much as digits as its factorization.

142204431157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 142204431157 its reverse (751134402241), we get a palindrome (893338833398).

The spelling of 142204431157 in words is "one hundred forty-two billion, two hundred four million, four hundred thirty-one thousand, one hundred fifty-seven".