2125005 has 8 divisors (see below), whose sum is σ = 3400032. Its totient is φ = 1133328.

The previous prime is 2125001. The next prime is 2125009. The reversal of 2125005 is 5005212.

It is an interprime number because it is at equal distance from previous prime (2125001) and next prime (2125009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2125005 - 2² = 2125001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 141667 = 2125005 / (2 + 1 + 2 + 5 + 0 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70819 + ... + 70848.

It is an arithmetic number, because the mean of its divisors is an integer number (425004).

2^2125005 is an apocalyptic number.

It is an amenable number.

2125005 is a deficient number, since it is larger than the sum of its proper divisors (1275027).

2125005 is a wasteful number, since it uses less digits than its factorization.

2125005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141675.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2125005 is about 1457.7396886962. The cubic root of 2125005 is about 128.5641803674.

The spelling of 2125005 in words is "two million, one hundred twenty-five thousand, five".