2520149 has 2 divisors, whose sum is σ = 2520150. Its totient is φ = 2520148.

The previous prime is 2520139. The next prime is 2520151. The reversal of 2520149 is 9410252.

2520149 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., 2402500 + 117649 = 1550^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520149 - 2²⁰ = 1471573 is a prime.

Together with 2520151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520139) 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, 1260074 + 1260075.

It is an arithmetic number, because the mean of its divisors is an integer number (1260075).

2^2520149 is an apocalyptic number.

It is an amenable number.

2520149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520149 is an equidigital number, since it uses as much as digits as its factorization.

2520149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2520149 is about 1587.4977165338. The cubic root of 2520149 is about 136.0845243025.

The spelling of 2520149 in words is "two million, five hundred twenty thousand, one hundred forty-nine".