1494857549 has 8 divisors (see below), whose sum is σ = 1593415800. Its totient is φ = 1397479936.

The previous prime is 1494857543. The next prime is 1494857587. The reversal of 1494857549 is 9457584941.

It can be written as a sum of positive squares in 4 ways, for example, as 355322500 + 1139535049 = 18850^2 + 33757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1494857549 - 2²⁴ = 1478080333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1494857494 and 1494857503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494857543) 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 7 ways as a sum of consecutive naturals, for example, 292544 + ... + 297609.

It is an arithmetic number, because the mean of its divisors is an integer number (199176975).

Almost surely, 2^1494857549 is an apocalyptic number.

It is an amenable number.

1494857549 is a deficient number, since it is larger than the sum of its proper divisors (98558251).

1494857549 is a wasteful number, since it uses less digits than its factorization.

1494857549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590319.

The product of its digits is 7257600, while the sum is 56.

The square root of 1494857549 is about 38663.3877072354. The cubic root of 1494857549 is about 1143.4046032651.

The spelling of 1494857549 in words is "one billion, four hundred ninety-four million, eight hundred fifty-seven thousand, five hundred forty-nine".