2520191 has 2 divisors, whose sum is σ = 2520192. Its totient is φ = 2520190.

The previous prime is 2520173. The next prime is 2520211. The reversal of 2520191 is 1910252.

It is an a-pointer prime, because the next prime (2520211) can be obtained adding 2520191 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2520191 - 2⁶ = 2520127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260095 + 1260096.

It is an arithmetic number, because the mean of its divisors is an integer number (1260096).

2^2520191 is an apocalyptic number.

2520191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520191 is an equidigital number, since it uses as much as digits as its factorization.

2520191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2520191 is about 1587.5109448442. The cubic root of 2520191 is about 136.0852802788.

The spelling of 2520191 in words is "two million, five hundred twenty thousand, one hundred ninety-one".