142381177 has 2 divisors, whose sum is σ = 142381178. Its totient is φ = 142381176.

The previous prime is 142381163. The next prime is 142381207. The reversal of 142381177 is 771183241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104632441 + 37748736 = 10229^2 + 6144^2 .

It is a cyclic number.

It is not a de Polignac number, because 142381177 - 2⁷ = 142381049 is a prime.

It is not a weakly prime, because it can be changed into another prime (142381777) 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, 71190588 + 71190589.

It is an arithmetic number, because the mean of its divisors is an integer number (71190589).

Almost surely, 2^142381177 is an apocalyptic number.

It is an amenable number.

142381177 is a deficient number, since it is larger than the sum of its proper divisors (1).

142381177 is an equidigital number, since it uses as much as digits as its factorization.

142381177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 34.

The square root of 142381177 is about 11932.3584005845. The cubic root of 142381177 is about 522.1767444142.

The spelling of 142381177 in words is "one hundred forty-two million, three hundred eighty-one thousand, one hundred seventy-seven".