1587143672 has 16 divisors (see below), whose sum is σ = 2976331560. Its totient is φ = 793455264.

The previous prime is 1587143669. The next prime is 1587143711. The reversal of 1587143672 is 2763417851.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77543 + ... + 95849.

Almost surely, 2^1587143672 is an apocalyptic number.

It is an amenable number.

1587143672 is a deficient number, since it is larger than the sum of its proper divisors (1389187888).

1587143672 is a wasteful number, since it uses less digits than its factorization.

1587143672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29150 (or 29146 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 1587143672 is about 39838.9717738799. The cubic root of 1587143672 is about 1166.4659894655.

The spelling of 1587143672 in words is "one billion, five hundred eighty-seven million, one hundred forty-three thousand, six hundred seventy-two".