142000069 has 2 divisors, whose sum is σ = 142000070. Its totient is φ = 142000068.

The previous prime is 142000049. The next prime is 142000081. The reversal of 142000069 is 960000241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131951169 + 10048900 = 11487^2 + 3170^2 .

It is a cyclic number.

It is not a de Polignac number, because 142000069 - 2⁷ = 141999941 is a prime.

It is a super-2 number, since 2×142000069² = 40328039192009522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142000039) 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, 71000034 + 71000035.

It is an arithmetic number, because the mean of its divisors is an integer number (71000035).

Almost surely, 2^142000069 is an apocalyptic number.

It is an amenable number.

142000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

142000069 is an equidigital number, since it uses as much as digits as its factorization.

142000069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 142000069 is about 11916.3781829883. The cubic root of 142000069 is about 521.7104291300.

The spelling of 142000069 in words is "one hundred forty-two million, sixty-nine", and thus it is an aban number.