2513249 has 2 divisors, whose sum is σ = 2513250. Its totient is φ = 2513248.

The previous prime is 2513209. The next prime is 2513281. The reversal of 2513249 is 9423152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 1024 = 1585^2 + 32^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2513249 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2513209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256624 + 1256625.

It is an arithmetic number, because the mean of its divisors is an integer number (1256625).

2^2513249 is an apocalyptic number.

It is an amenable number.

2513249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2513249 is an equidigital number, since it uses as much as digits as its factorization.

2513249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 2513249 is about 1585.3229954807. The cubic root of 2513249 is about 135.9602139963.

Subtracting 2513249 from its reverse (9423152), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2513249 in words is "two million, five hundred thirteen thousand, two hundred forty-nine".