163722441 has 8 divisors (see below), whose sum is σ = 227787840. Its totient is φ = 104402672.

The previous prime is 163722437. The next prime is 163722467. The reversal of 163722441 is 144227361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163722441 - 2² = 163722437 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163722399 and 163722408.

It is not an unprimeable number, because it can be changed into a prime (163722421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186326 + ... + 1186463.

It is an arithmetic number, because the mean of its divisors is an integer number (28473480).

Almost surely, 2^163722441 is an apocalyptic number.

It is an amenable number.

163722441 is a deficient number, since it is larger than the sum of its proper divisors (64065399).

163722441 is a wasteful number, since it uses less digits than its factorization.

163722441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372815.

The product of its digits is 8064, while the sum is 30.

The square root of 163722441 is about 12795.4070275236. The cubic root of 163722441 is about 547.0613972327.

The spelling of 163722441 in words is "one hundred sixty-three million, seven hundred twenty-two thousand, four hundred forty-one".