532278161 has 2 divisors, whose sum is σ = 532278162. Its totient is φ = 532278160.

The previous prime is 532278127. The next prime is 532278191. The reversal of 532278161 is 161872235.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334707025 + 197571136 = 18295^2 + 14056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-532278161 is a prime.

It is a Chen prime.

It is equal to p_27964016 and since 532278161 and 27964016 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (532278191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266139080 + 266139081.

It is an arithmetic number, because the mean of its divisors is an integer number (266139081).

Almost surely, 2^532278161 is an apocalyptic number.

It is an amenable number.

532278161 is a deficient number, since it is larger than the sum of its proper divisors (1).

532278161 is an equidigital number, since it uses as much as digits as its factorization.

532278161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 532278161 is about 23071.1543057559. The cubic root of 532278161 is about 810.4250987149.

The spelling of 532278161 in words is "five hundred thirty-two million, two hundred seventy-eight thousand, one hundred sixty-one".