2245129 has 4 divisors (see below), whose sum is σ = 2267460. Its totient is φ = 2222800.

The previous prime is 2245121. The next prime is 2245141. The reversal of 2245129 is 9215422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1505529 + 739600 = 1227^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245129 - 2³ = 2245121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2245121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11014 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (566865).

2^2245129 is an apocalyptic number.

It is an amenable number.

2245129 is a deficient number, since it is larger than the sum of its proper divisors (22331).

2245129 is a wasteful number, since it uses less digits than its factorization.

2245129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330.

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

The square root of 2245129 is about 1498.3754536163. The cubic root of 2245129 is about 130.9424411587.

The spelling of 2245129 in words is "two million, two hundred forty-five thousand, one hundred twenty-nine".