2945129 has 4 divisors (see below), whose sum is σ = 3212880. Its totient is φ = 2677380.

The previous prime is 2945123. The next prime is 2945147. The reversal of 2945129 is 9215492.

2945129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2945129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2945095 and 2945104.

It is not an unprimeable number, because it can be changed into a prime (2945123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133859 + ... + 133880.

It is an arithmetic number, because the mean of its divisors is an integer number (803220).

2^2945129 is an apocalyptic number.

It is an amenable number.

2945129 is a deficient number, since it is larger than the sum of its proper divisors (267751).

2945129 is a wasteful number, since it uses less digits than its factorization.

2945129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267750.

The product of its digits is 6480, while the sum is 32.

The square root of 2945129 is about 1716.1378149787. The cubic root of 2945129 is about 143.3402334278.

The spelling of 2945129 in words is "two million, nine hundred forty-five thousand, one hundred twenty-nine".