2539147 has 4 divisors (see below), whose sum is σ = 2734480. Its totient is φ = 2343816.

The previous prime is 2539123. The next prime is 2539151. The reversal of 2539147 is 7419352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2539147 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 3³ + 9⁵ + 1 + 4⁴ + 7⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2539157) 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, 97647 + ... + 97672.

It is an arithmetic number, because the mean of its divisors is an integer number (683620).

2^2539147 is an apocalyptic number.

2539147 is a deficient number, since it is larger than the sum of its proper divisors (195333).

2539147 is a wasteful number, since it uses less digits than its factorization.

2539147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195332.

The product of its digits is 7560, while the sum is 31.

The square root of 2539147 is about 1593.4701126786. The cubic root of 2539147 is about 136.4256237640.

The spelling of 2539147 in words is "two million, five hundred thirty-nine thousand, one hundred forty-seven".