1493531549 has 8 divisors (see below), whose sum is σ = 1615033728. Its totient is φ = 1375768000.

The previous prime is 1493531539. The next prime is 1493531561. The reversal of 1493531549 is 9451353941.

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 1493531549 - 2²⁴ = 1476754333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493531539) 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, 933827 + ... + 935424.

It is an arithmetic number, because the mean of its divisors is an integer number (201879216).

Almost surely, 2^1493531549 is an apocalyptic number.

It is an amenable number.

1493531549 is a deficient number, since it is larger than the sum of its proper divisors (121502179).

1493531549 is a wasteful number, since it uses less digits than its factorization.

1493531549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869315.

The product of its digits is 291600, while the sum is 44.

The square root of 1493531549 is about 38646.2358969150. The cubic root of 1493531549 is about 1143.0664209808.

The spelling of 1493531549 in words is "one billion, four hundred ninety-three million, five hundred thirty-one thousand, five hundred forty-nine".