142726229 has 2 divisors, whose sum is σ = 142726230. Its totient is φ = 142726228.

The previous prime is 142726163. The next prime is 142726249. The reversal of 142726229 is 922627241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119464900 + 23261329 = 10930^2 + 4823^2 .

It is a cyclic number.

It is not a de Polignac number, because 142726229 - 2¹² = 142722133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142726249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71363114 + 71363115.

It is an arithmetic number, because the mean of its divisors is an integer number (71363115).

Almost surely, 2^142726229 is an apocalyptic number.

It is an amenable number.

142726229 is a deficient number, since it is larger than the sum of its proper divisors (1).

142726229 is an equidigital number, since it uses as much as digits as its factorization.

142726229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 142726229 is about 11946.8083185427. The cubic root of 142726229 is about 522.5982251634.

The spelling of 142726229 in words is "one hundred forty-two million, seven hundred twenty-six thousand, two hundred twenty-nine".