163321241 has 4 divisors (see below), whose sum is σ = 163590912. Its totient is φ = 163051572.

The previous prime is 163321231. The next prime is 163321271. The reversal of 163321241 is 142123361.

163321241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163321241 - 2¹⁴ = 163304857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163321231) 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, 133925 + ... + 135138.

It is an arithmetic number, because the mean of its divisors is an integer number (40897728).

Almost surely, 2^163321241 is an apocalyptic number.

It is an amenable number.

163321241 is a deficient number, since it is larger than the sum of its proper divisors (269671).

163321241 is an equidigital number, since it uses as much as digits as its factorization.

163321241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269670.

The product of its digits is 864, while the sum is 23.

The square root of 163321241 is about 12779.7199108588. The cubic root of 163321241 is about 546.6141757965.

The spelling of 163321241 in words is "one hundred sixty-three million, three hundred twenty-one thousand, two hundred forty-one".