2439149 has 4 divisors (see below), whose sum is σ = 2472636. Its totient is φ = 2405664.

The previous prime is 2439137. The next prime is 2439167. The reversal of 2439149 is 9419342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1974025 + 465124 = 1405^2 + 682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2439149 - 2⁴ = 2439133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16634 + ... + 16779.

It is an arithmetic number, because the mean of its divisors is an integer number (618159).

2^2439149 is an apocalyptic number.

It is an amenable number.

2439149 is a deficient number, since it is larger than the sum of its proper divisors (33487).

2439149 is an equidigital number, since it uses as much as digits as its factorization.

2439149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33486.

The product of its digits is 7776, while the sum is 32.

The square root of 2439149 is about 1561.7775129640. Note that the first 3 decimals coincide. The cubic root of 2439149 is about 134.6106568973.

The spelling of 2439149 in words is "two million, four hundred thirty-nine thousand, one hundred forty-nine".