142223069 has 2 divisors, whose sum is σ = 142223070. Its totient is φ = 142223068.

The previous prime is 142223063. The next prime is 142223077. The reversal of 142223069 is 960322241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 61042969 = 9010^2 + 7813^2 .

It is a cyclic number.

It is not a de Polignac number, because 142223069 - 2⁸ = 142222813 is a prime.

It is a super-2 number, since 2×142223069² = 40454802711557522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142223063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71111534 + 71111535.

It is an arithmetic number, because the mean of its divisors is an integer number (71111535).

Almost surely, 2^142223069 is an apocalyptic number.

It is an amenable number.

142223069 is a deficient number, since it is larger than the sum of its proper divisors (1).

142223069 is an equidigital number, since it uses as much as digits as its factorization.

142223069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 142223069 is about 11925.7313821837. The cubic root of 142223069 is about 521.9833880985.

The spelling of 142223069 in words is "one hundred forty-two million, two hundred twenty-three thousand, sixty-nine".