201429247 has 2 divisors, whose sum is σ = 201429248. Its totient is φ = 201429246.

The previous prime is 201429211. The next prime is 201429253. The reversal of 201429247 is 742924102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201429247 - 2¹⁹ = 200904959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201529247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100714623 + 100714624.

It is an arithmetic number, because the mean of its divisors is an integer number (100714624).

Almost surely, 2^201429247 is an apocalyptic number.

201429247 is a deficient number, since it is larger than the sum of its proper divisors (1).

201429247 is an equidigital number, since it uses as much as digits as its factorization.

201429247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 201429247 is about 14192.5771796387. The cubic root of 201429247 is about 586.1932902654.

The spelling of 201429247 in words is "two hundred one million, four hundred twenty-nine thousand, two hundred forty-seven".