401232173 has 2 divisors, whose sum is σ = 401232174. Its totient is φ = 401232172.

The previous prime is 401232157. The next prime is 401232193. The reversal of 401232173 is 371232104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371834089 + 29398084 = 19283^2 + 5422^2 .

It is a cyclic number.

It is not a de Polignac number, because 401232173 - 2⁴ = 401232157 is a prime.

It is a super-4 number, since 4×401232173⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401232103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200616086 + 200616087.

It is an arithmetic number, because the mean of its divisors is an integer number (200616087).

Almost surely, 2^401232173 is an apocalyptic number.

It is an amenable number.

401232173 is a deficient number, since it is larger than the sum of its proper divisors (1).

401232173 is an equidigital number, since it uses as much as digits as its factorization.

401232173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 401232173 is about 20030.7806388069. The cubic root of 401232173 is about 737.5620849007.

Adding to 401232173 its reverse (371232104), we get a palindrome (772464277).

The spelling of 401232173 in words is "four hundred one million, two hundred thirty-two thousand, one hundred seventy-three".