2002547 has 2 divisors, whose sum is σ = 2002548. Its totient is φ = 2002546.

The previous prime is 2002531. The next prime is 2002577. The reversal of 2002547 is 7452002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002547 - 2⁴ = 2002531 is a prime.

It is a Chen prime.

It is equal to p₁₄₉₁₀₅ and since 2002547 and 149105 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2002577) 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 as a sum of consecutive naturals, namely, 1001273 + 1001274.

It is an arithmetic number, because the mean of its divisors is an integer number (1001274).

2^2002547 is an apocalyptic number.

2002547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002547 is an equidigital number, since it uses as much as digits as its factorization.

2002547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2002547 is about 1415.1137763445. The cubic root of 2002547 is about 126.0455659503.

Adding to 2002547 its reverse (7452002), we get a palindrome (9454549).

The spelling of 2002547 in words is "two million, two thousand, five hundred forty-seven".