1587157143 has 32 divisors (see below), whose sum is σ = 2553395712. Its totient is φ = 863913600.

The previous prime is 1587157139. The next prime is 1587157199. The reversal of 1587157143 is 3417517851.

It is not a de Polignac number, because 1587157143 - 2² = 1587157139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1587157095 and 1587157104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587157123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34123 + ... + 65868.

It is an arithmetic number, because the mean of its divisors is an integer number (79793616).

Almost surely, 2^1587157143 is an apocalyptic number.

1587157143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1587157143 is a deficient number, since it is larger than the sum of its proper divisors (966238569).

1587157143 is a wasteful number, since it uses less digits than its factorization.

1587157143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100055.

The product of its digits is 117600, while the sum is 42.

The square root of 1587157143 is about 39839.1408416396. The cubic root of 1587157143 is about 1166.4692896118.

The spelling of 1587157143 in words is "one billion, five hundred eighty-seven million, one hundred fifty-seven thousand, one hundred forty-three".