20417141 has 4 divisors (see below), whose sum is σ = 20443872. Its totient is φ = 20390412.

The previous prime is 20417107. The next prime is 20417143. The reversal of 20417141 is 14171402.

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 20417141 - 2¹⁰ = 20416117 is a prime.

It is a super-2 number, since 2×20417141² = 833719293227762, 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 (20417143) 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, 12185 + ... + 13758.

It is an arithmetic number, because the mean of its divisors is an integer number (5110968).

Almost surely, 2^20417141 is an apocalyptic number.

It is an amenable number.

20417141 is a deficient number, since it is larger than the sum of its proper divisors (26731).

20417141 is an equidigital number, since it uses as much as digits as its factorization.

20417141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26730.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 20417141 is about 4518.5330584162. The cubic root of 20417141 is about 273.3159495521.

Adding to 20417141 its reverse (14171402), we get a palindrome (34588543).

The spelling of 20417141 in words is "twenty million, four hundred seventeen thousand, one hundred forty-one".