3955129 has 4 divisors (see below), whose sum is σ = 3960576. Its totient is φ = 3949684.

The previous prime is 3955123. The next prime is 3955139. The reversal of 3955129 is 9215593.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9215593 = 73 ⋅126241.

It is a cyclic number.

It is not a de Polignac number, because 3955129 - 2³ = 3955121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3955094 and 3955103.

It is not an unprimeable number, because it can be changed into a prime (3955121) 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 in 3 ways as a sum of consecutive naturals, for example, 1429 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (990144).

Almost surely, 2^3955129 is an apocalyptic number.

It is an amenable number.

3955129 is a deficient number, since it is larger than the sum of its proper divisors (5447).

3955129 is an equidigital number, since it uses as much as digits as its factorization.

3955129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446.

The product of its digits is 12150, while the sum is 34.

The square root of 3955129 is about 1988.7506128220. The cubic root of 3955129 is about 158.1443028194.

The spelling of 3955129 in words is "three million, nine hundred fifty-five thousand, one hundred twenty-nine".