1587143145 has 16 divisors (see below), whose sum is σ = 2902204800. Its totient is φ = 725551104.

The previous prime is 1587143111. The next prime is 1587143167. The reversal of 1587143145 is 5413417851.

It is not a de Polignac number, because 1587143145 - 2¹² = 1587139049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7557720 + ... + 7557929.

It is an arithmetic number, because the mean of its divisors is an integer number (181387800).

Almost surely, 2^1587143145 is an apocalyptic number.

1587143145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1587143145 is a deficient number, since it is larger than the sum of its proper divisors (1315061655).

1587143145 is a wasteful number, since it uses less digits than its factorization.

1587143145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15115664.

The product of its digits is 67200, while the sum is 39.

The square root of 1587143145 is about 39838.9651597528. The cubic root of 1587143145 is about 1166.4658603599.

The spelling of 1587143145 in words is "one billion, five hundred eighty-seven million, one hundred forty-three thousand, one hundred forty-five".