20535341 has 4 divisors (see below), whose sum is σ = 20685372. Its totient is φ = 20385312.

The previous prime is 20535323. The next prime is 20535349. The reversal of 20535341 is 14353502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15602500 + 4932841 = 3950^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535341 - 2¹⁴ = 20518957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535349) 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, 74810 + ... + 75083.

It is an arithmetic number, because the mean of its divisors is an integer number (5171343).

Almost surely, 2^20535341 is an apocalyptic number.

It is an amenable number.

20535341 is a deficient number, since it is larger than the sum of its proper divisors (150031).

20535341 is a wasteful number, since it uses less digits than its factorization.

20535341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150030.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20535341 is about 4531.5936490378. The cubic root of 20535341 is about 273.8423667513.

Adding to 20535341 its reverse (14353502), we get a palindrome (34888843).

The spelling of 20535341 in words is "twenty million, five hundred thirty-five thousand, three hundred forty-one".