163540411 has 2 divisors, whose sum is σ = 163540412. Its totient is φ = 163540410.

The previous prime is 163540393. The next prime is 163540423. The reversal of 163540411 is 114045361.

It is a strong prime.

It is an emirp because it is prime and its reverse (114045361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163540411 - 2⁵ = 163540379 is a prime.

It is not a weakly prime, because it can be changed into another prime (163540471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81770205 + 81770206.

It is an arithmetic number, because the mean of its divisors is an integer number (81770206).

Almost surely, 2^163540411 is an apocalyptic number.

163540411 is a deficient number, since it is larger than the sum of its proper divisors (1).

163540411 is an equidigital number, since it uses as much as digits as its factorization.

163540411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 163540411 is about 12788.2919500612. The cubic root of 163540411 is about 546.8585773180.

Adding to 163540411 its reverse (114045361), we get a palindrome (277585772).

The spelling of 163540411 in words is "one hundred sixty-three million, five hundred forty thousand, four hundred eleven".