3995129 has 2 divisors, whose sum is σ = 3995130. Its totient is φ = 3995128.

The previous prime is 3995113. The next prime is 3995161. The reversal of 3995129 is 9215993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3892729 + 102400 = 1973^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 3995129 - 2⁴ = 3995113 is a prime.

It is a super-2 number, since 2×3995129² = 31922111453282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3995092 and 3995101.

It is not a weakly prime, because it can be changed into another prime (3995029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997564 + 1997565.

It is an arithmetic number, because the mean of its divisors is an integer number (1997565).

Almost surely, 2^3995129 is an apocalyptic number.

It is an amenable number.

3995129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3995129 is an equidigital number, since it uses as much as digits as its factorization.

3995129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 38.

The square root of 3995129 is about 1998.7818790453. The cubic root of 3995129 is about 158.6756437694.

The spelling of 3995129 in words is "three million, nine hundred ninety-five thousand, one hundred twenty-nine".