1487481138 has 64 divisors (see below), whose sum is σ = 3883420800. Its totient is φ = 416076480.

The previous prime is 1487481133. The next prime is 1487481167. The reversal of 1487481138 is 8311847841.

It is a junction number, because it is equal to n+sod(n) for n = 1487481093 and 1487481102.

It is not an unprimeable number, because it can be changed into a prime (1487481133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88593 + ... + 104036.

It is an arithmetic number, because the mean of its divisors is an integer number (60678450).

Almost surely, 2^1487481138 is an apocalyptic number.

1487481138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1487481138 is an abundant number, since it is smaller than the sum of its proper divisors (2395939662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1487481138 is a wasteful number, since it uses less digits than its factorization.

1487481138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192664 (or 192658 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 1487481138 is about 38567.8770222059. The cubic root of 1487481138 is about 1141.5207819797.

The spelling of 1487481138 in words is "one billion, four hundred eighty-seven million, four hundred eighty-one thousand, one hundred thirty-eight".