2572147 has 4 divisors (see below), whose sum is σ = 2575800. Its totient is φ = 2568496.

The previous prime is 2572139. The next prime is 2572153. The reversal of 2572147 is 7412752.

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

It is a cyclic number.

It is not a de Polignac number, because 2572147 - 2³ = 2572139 is a prime.

It is a Duffinian number.

2572147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2572127) 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, 397 + ... + 2302.

It is an arithmetic number, because the mean of its divisors is an integer number (643950).

2^2572147 is an apocalyptic number.

2572147 is a deficient number, since it is larger than the sum of its proper divisors (3653).

2572147 is an equidigital number, since it uses as much as digits as its factorization.

2572147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3652.

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

The square root of 2572147 is about 1603.7914452946. The cubic root of 2572147 is about 137.0140998151.

Adding to 2572147 its reverse (7412752), we get a palindrome (9984899).

The spelling of 2572147 in words is "two million, five hundred seventy-two thousand, one hundred forty-seven".