142382161 has 2 divisors, whose sum is σ = 142382162. Its totient is φ = 142382160.

The previous prime is 142382087. The next prime is 142382171. The reversal of 142382161 is 161283241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141491025 + 891136 = 11895^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 142382161 - 2²¹ = 140285009 is a prime.

It is not a weakly prime, because it can be changed into another prime (142382171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71191080 + 71191081.

It is an arithmetic number, because the mean of its divisors is an integer number (71191081).

Almost surely, 2^142382161 is an apocalyptic number.

It is an amenable number.

142382161 is a deficient number, since it is larger than the sum of its proper divisors (1).

142382161 is an equidigital number, since it uses as much as digits as its factorization.

142382161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 142382161 is about 11932.3996329322. The cubic root of 142382161 is about 522.1779473371.

The spelling of 142382161 in words is "one hundred forty-two million, three hundred eighty-two thousand, one hundred sixty-one".