2529391 has 2 divisors, whose sum is σ = 2529392. Its totient is φ = 2529390.

The previous prime is 2529367. The next prime is 2529403. The reversal of 2529391 is 1939252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2529391 - 2¹⁹ = 2005103 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 (2529301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264695 + 1264696.

It is an arithmetic number, because the mean of its divisors is an integer number (1264696).

2^2529391 is an apocalyptic number.

2529391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2529391 is an equidigital number, since it uses as much as digits as its factorization.

2529391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 31.

The square root of 2529391 is about 1590.4059230272. The cubic root of 2529391 is about 136.2506730601.

The spelling of 2529391 in words is "two million, five hundred twenty-nine thousand, three hundred ninety-one".