1587113421 has 16 divisors (see below), whose sum is σ = 2317896000. Its totient is φ = 961495808.

The previous prime is 1587113401. The next prime is 1587113431. The reversal of 1587113421 is 1243117851.

It is a cyclic number.

It is not a de Polignac number, because 1587113421 - 2¹⁵ = 1587080653 is a prime.

It is a super-2 number, since 2×1587113421² = 5037858022236646482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587113401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 535071 + ... + 538028.

It is an arithmetic number, because the mean of its divisors is an integer number (144868500).

Almost surely, 2^1587113421 is an apocalyptic number.

It is an amenable number.

1587113421 is a deficient number, since it is larger than the sum of its proper divisors (730782579).

1587113421 is a wasteful number, since it uses less digits than its factorization.

1587113421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073148.

The product of its digits is 6720, while the sum is 33.

The square root of 1587113421 is about 39838.5921061475. The cubic root of 1587113421 is about 1166.4585784610.

It can be divided in two parts, 15871 and 13421, that added together give a palindrome (29292).

The spelling of 1587113421 in words is "one billion, five hundred eighty-seven million, one hundred thirteen thousand, four hundred twenty-one".