629142271 has 2 divisors, whose sum is σ = 629142272. Its totient is φ = 629142270.

The previous prime is 629142247. The next prime is 629142301. The reversal of 629142271 is 172241926.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 629142271 - 2¹¹ = 629140223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629142221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314571135 + 314571136.

It is an arithmetic number, because the mean of its divisors is an integer number (314571136).

Almost surely, 2^629142271 is an apocalyptic number.

629142271 is a deficient number, since it is larger than the sum of its proper divisors (1).

629142271 is an equidigital number, since it uses as much as digits as its factorization.

629142271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 629142271 is about 25082.7086057308. The cubic root of 629142271 is about 856.8726647755.

The spelling of 629142271 in words is "six hundred twenty-nine million, one hundred forty-two thousand, two hundred seventy-one".