163724141 has 6 divisors (see below), whose sum is σ = 190454670. Its totient is φ = 140334936.

The previous prime is 163724123. The next prime is 163724167. The reversal of 163724141 is 141427361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 137968516 + 25755625 = 11746^2 + 5075^2 .

It is a de Polignac number, because none of the positive numbers 2^k-163724141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163724191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1670606 + ... + 1670703.

It is an arithmetic number, because the mean of its divisors is an integer number (31742445).

Almost surely, 2^163724141 is an apocalyptic number.

It is an amenable number.

163724141 is a deficient number, since it is larger than the sum of its proper divisors (26730529).

163724141 is an equidigital number, since it uses as much as digits as its factorization.

163724141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341323 (or 3341316 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 163724141 is about 12795.4734574380. The cubic root of 163724141 is about 547.0632906835.

The spelling of 163724141 in words is "one hundred sixty-three million, seven hundred twenty-four thousand, one hundred forty-one".