3200129 has 2 divisors, whose sum is σ = 3200130. Its totient is φ = 3200128.

The previous prime is 3200123. The next prime is 3200137. The reversal of 3200129 is 9210023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 559504 = 1625^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 3200129 - 2¹² = 3196033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3200123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600064 + 1600065.

It is an arithmetic number, because the mean of its divisors is an integer number (1600065).

Almost surely, 2^3200129 is an apocalyptic number.

It is an amenable number.

3200129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200129 is an equidigital number, since it uses as much as digits as its factorization.

3200129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3200129 is about 1788.8904382326. The cubic root of 3200129 is about 147.3632400859.

The spelling of 3200129 in words is "three million, two hundred thousand, one hundred twenty-nine".