1493681534 has 8 divisors (see below), whose sum is σ = 2246167128. Its totient is φ = 744959160.

The previous prime is 1493681533. The next prime is 1493681593. The reversal of 1493681534 is 4351863941.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493681531) 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 3 ways as a sum of consecutive naturals, for example, 939812 + ... + 941399.

It is an arithmetic number, because the mean of its divisors is an integer number (280770891).

Almost surely, 2^1493681534 is an apocalyptic number.

1493681534 is a deficient number, since it is larger than the sum of its proper divisors (752485594).

1493681534 is a wasteful number, since it uses less digits than its factorization.

1493681534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881610.

The product of its digits is 311040, while the sum is 44.

The square root of 1493681534 is about 38648.1763347250. The cubic root of 1493681534 is about 1143.1046831072.

The spelling of 1493681534 in words is "one billion, four hundred ninety-three million, six hundred eighty-one thousand, five hundred thirty-four".