2147425 has 18 divisors (see below), whose sum is σ = 3099318. Its totient is φ = 1471680.

The previous prime is 2147419. The next prime is 2147429. The reversal of 2147425 is 5247412.

It can be written as a sum of positive squares in 3 ways, for example, as 7056 + 2140369 = 84^2 + 1463^2 .

It is not a de Polignac number, because 2147425 - 2⁷ = 2147297 is a prime.

It is a super-2 number, since 2×2147425² = 9222868261250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2147425.

It is not an unprimeable number, because it can be changed into a prime (2147429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 349 + ... + 2101.

2^2147425 is an apocalyptic number.

2147425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2147425 is a deficient number, since it is larger than the sum of its proper divisors (951893).

2147425 is a wasteful number, since it uses less digits than its factorization.

2147425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777 (or 1765 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 2147425 is about 1465.4094990821. The cubic root of 2147425 is about 129.0147410192.

The spelling of 2147425 in words is "two million, one hundred forty-seven thousand, four hundred twenty-five".