20141587 has 8 divisors (see below), whose sum is σ = 20680704. Its totient is φ = 19605768.

The previous prime is 20141567. The next prime is 20141591. The reversal of 20141587 is 78514102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20141587 is a prime.

It is a super-3 number, since 3×20141587³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20141507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15858 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (2585088).

Almost surely, 2^20141587 is an apocalyptic number.

20141587 is a deficient number, since it is larger than the sum of its proper divisors (539117).

20141587 is a wasteful number, since it uses less digits than its factorization.

20141587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 20141587 is about 4487.9379452038. The cubic root of 20141587 is about 272.0807997771.

Adding to 20141587 its reverse (78514102), we get a palindrome (98655689).

The spelling of 20141587 in words is "twenty million, one hundred forty-one thousand, five hundred eighty-seven".