142347229 has 2 divisors, whose sum is σ = 142347230. Its totient is φ = 142347228.

The previous prime is 142347211. The next prime is 142347263. The reversal of 142347229 is 922743241.

It is an a-pointer prime, because the next prime (142347263) can be obtained adding 142347229 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126562500 + 15784729 = 11250^2 + 3973^2 .

It is a cyclic number.

It is not a de Polignac number, because 142347229 - 2⁹ = 142346717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142347194 and 142347203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142347929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71173614 + 71173615.

It is an arithmetic number, because the mean of its divisors is an integer number (71173615).

Almost surely, 2^142347229 is an apocalyptic number.

It is an amenable number.

142347229 is a deficient number, since it is larger than the sum of its proper divisors (1).

142347229 is an equidigital number, since it uses as much as digits as its factorization.

142347229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 142347229 is about 11930.9357973296. The cubic root of 142347229 is about 522.1352401799.

The spelling of 142347229 in words is "one hundred forty-two million, three hundred forty-seven thousand, two hundred twenty-nine".