2405149 has 2 divisors, whose sum is σ = 2405150. Its totient is φ = 2405148.

The previous prime is 2405147. The next prime is 2405171. The reversal of 2405149 is 9415042.

2405149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 79524 = 1525^2 + 282^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405149 - 2¹ = 2405147 is a prime.

Together with 2405147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2405141) 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, 1202574 + 1202575.

It is an arithmetic number, because the mean of its divisors is an integer number (1202575).

2^2405149 is an apocalyptic number.

It is an amenable number.

2405149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405149 is an equidigital number, since it uses as much as digits as its factorization.

2405149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2405149 is about 1550.8542807111. The cubic root of 2405149 is about 133.9822691324.

The spelling of 2405149 in words is "two million, four hundred five thousand, one hundred forty-nine".