102205429 has 2 divisors, whose sum is σ = 102205430. Its totient is φ = 102205428.

The previous prime is 102205403. The next prime is 102205457. The reversal of 102205429 is 924502201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67076100 + 35129329 = 8190^2 + 5927^2 .

It is a cyclic number.

It is not a de Polignac number, because 102205429 - 2¹³ = 102197237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102205489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51102714 + 51102715.

It is an arithmetic number, because the mean of its divisors is an integer number (51102715).

Almost surely, 2^102205429 is an apocalyptic number.

It is an amenable number.

102205429 is a deficient number, since it is larger than the sum of its proper divisors (1).

102205429 is an equidigital number, since it uses as much as digits as its factorization.

102205429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 102205429 is about 10109.6700737462. The cubic root of 102205429 is about 467.5463330212.

The spelling of 102205429 in words is "one hundred two million, two hundred five thousand, four hundred twenty-nine".