20141887 has 4 divisors (see below), whose sum is σ = 20152360. Its totient is φ = 20131416.

The previous prime is 20141879. The next prime is 20141893. The reversal of 20141887 is 78814102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20141887 - 2³ = 20141879 is a prime.

It is a super-2 number, since 2×20141887² = 811391223841538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20141867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (5038090).

Almost surely, 2^20141887 is an apocalyptic number.

20141887 is a deficient number, since it is larger than the sum of its proper divisors (10473).

20141887 is an equidigital number, since it uses as much as digits as its factorization.

20141887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10472.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 20141887 is about 4487.9713680014. The cubic root of 20141887 is about 272.0821506113.

Adding to 20141887 its reverse (78814102), we get a palindrome (98955989).

The spelling of 20141887 in words is "twenty million, one hundred forty-one thousand, eight hundred eighty-seven".