2547172 has 12 divisors (see below), whose sum is σ = 4471740. Its totient is φ = 1269536.

The previous prime is 2547151. The next prime is 2547173. The reversal of 2547172 is 2717452.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 2262016 = 534^2 + 1504^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2547172.

It is not an unprimeable number, because it can be changed into a prime (2547173) 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, 738 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (372645).

2^2547172 is an apocalyptic number.

It is an amenable number.

2547172 is a deficient number, since it is larger than the sum of its proper divisors (1924568).

2547172 is a wasteful number, since it uses less digits than its factorization.

2547172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2028 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 2547172 is about 1595.9862154793. The cubic root of 2547172 is about 136.5691974733.

The spelling of 2547172 in words is "two million, five hundred forty-seven thousand, one hundred seventy-two".