1449457539 has 16 divisors (see below), whose sum is σ = 2049702144. Its totient is φ = 909136800.

The previous prime is 1449457531. The next prime is 1449457571. The reversal of 1449457539 is 9357549441.

It is a happy number.

It is not a de Polignac number, because 1449457539 - 2³ = 1449457531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1449457491 and 1449457500.

It is not an unprimeable number, because it can be changed into a prime (1449457531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167977 + ... + 176394.

It is an arithmetic number, because the mean of its divisors is an integer number (128106384).

Almost surely, 2^1449457539 is an apocalyptic number.

1449457539 is a deficient number, since it is larger than the sum of its proper divisors (600244605).

1449457539 is a wasteful number, since it uses less digits than its factorization.

1449457539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344458.

The product of its digits is 2721600, while the sum is 51.

The square root of 1449457539 is about 38071.7420011220. The cubic root of 1449457539 is about 1131.7100323506.

The spelling of 1449457539 in words is "one billion, four hundred forty-nine million, four hundred fifty-seven thousand, five hundred thirty-nine".