20141897 has 4 divisors (see below), whose sum is σ = 20570496. Its totient is φ = 19713300.

The previous prime is 20141893. The next prime is 20141899. The reversal of 20141897 is 79814102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20141897 - 2² = 20141893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20141893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214229 + ... + 214322.

It is an arithmetic number, because the mean of its divisors is an integer number (5142624).

Almost surely, 2^20141897 is an apocalyptic number.

It is an amenable number.

20141897 is a deficient number, since it is larger than the sum of its proper divisors (428599).

20141897 is an equidigital number, since it uses as much as digits as its factorization.

20141897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428598.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 20141897 is about 4487.9724820903. The cubic root of 20141897 is about 272.0821956389.

Adding to 20141897 its reverse (79814102), we get a palindrome (99955999).

The spelling of 20141897 in words is "twenty million, one hundred forty-one thousand, eight hundred ninety-seven".