20141155 has 4 divisors (see below), whose sum is σ = 24169392. Its totient is φ = 16112920.

The previous prime is 20141153. The next prime is 20141161. The reversal of 20141155 is 55114102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20141155 - 2¹ = 20141153 is a prime.

It is a super-2 number, since 2×20141155² = 811332249468050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20141153) 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, 2014111 + ... + 2014120.

It is an arithmetic number, because the mean of its divisors is an integer number (6042348).

Almost surely, 2^20141155 is an apocalyptic number.

20141155 is a deficient number, since it is larger than the sum of its proper divisors (4028237).

20141155 is an equidigital number, since it uses as much as digits as its factorization.

20141155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028236.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 20141155 is about 4487.8898159380. The cubic root of 20141155 is about 272.0788545523.

Adding to 20141155 its reverse (55114102), we get a palindrome (75255257).

The spelling of 20141155 in words is "twenty million, one hundred forty-one thousand, one hundred fifty-five".