452181161 has 2 divisors, whose sum is σ = 452181162. Its totient is φ = 452181160.

The previous prime is 452181151. The next prime is 452181167. The reversal of 452181161 is 161181254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432432025 + 19749136 = 20795^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 452181161 - 2¹⁰ = 452180137 is a prime.

It is not a weakly prime, because it can be changed into another prime (452181167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226090580 + 226090581.

It is an arithmetic number, because the mean of its divisors is an integer number (226090581).

Almost surely, 2^452181161 is an apocalyptic number.

It is an amenable number.

452181161 is a deficient number, since it is larger than the sum of its proper divisors (1).

452181161 is an equidigital number, since it uses as much as digits as its factorization.

452181161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 452181161 is about 21264.5517469802. The cubic root of 452181161 is about 767.5455442350.

The spelling of 452181161 in words is "four hundred fifty-two million, one hundred eighty-one thousand, one hundred sixty-one".