2519729 has 2 divisors, whose sum is σ = 2519730. Its totient is φ = 2519728.

The previous prime is 2519707. The next prime is 2519731. The reversal of 2519729 is 9279152.

2519729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 388129 = 1460^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 2519729 - 2¹² = 2515633 is a prime.

It is a Sophie Germain prime.

Together with 2519731, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2519329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259864 + 1259865.

It is an arithmetic number, because the mean of its divisors is an integer number (1259865).

2^2519729 is an apocalyptic number.

It is an amenable number.

2519729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519729 is an equidigital number, since it uses as much as digits as its factorization.

2519729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 35.

The square root of 2519729 is about 1587.3654273670. The cubic root of 2519729 is about 136.0769640782.

The spelling of 2519729 in words is "two million, five hundred nineteen thousand, seven hundred twenty-nine".