432555161 has 2 divisors, whose sum is σ = 432555162. Its totient is φ = 432555160.

The previous prime is 432555143. The next prime is 432555203. The reversal of 432555161 is 161555234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412699225 + 19855936 = 20315^2 + 4456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432555161 is a prime.

It is a super-4 number, since 4×432555161⁴ (a number of 36 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (432555131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216277580 + 216277581.

It is an arithmetic number, because the mean of its divisors is an integer number (216277581).

Almost surely, 2^432555161 is an apocalyptic number.

It is an amenable number.

432555161 is a deficient number, since it is larger than the sum of its proper divisors (1).

432555161 is an equidigital number, since it uses as much as digits as its factorization.

432555161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 432555161 is about 20797.9605009722. The cubic root of 432555161 is about 756.2763149462.

The spelling of 432555161 in words is "four hundred thirty-two million, five hundred fifty-five thousand, one hundred sixty-one".