424518161 has 2 divisors, whose sum is σ = 424518162. Its totient is φ = 424518160.

The previous prime is 424518079. The next prime is 424518173. The reversal of 424518161 is 161815424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422097025 + 2421136 = 20545^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 424518161 - 2²² = 420323857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424518461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212259080 + 212259081.

It is an arithmetic number, because the mean of its divisors is an integer number (212259081).

Almost surely, 2^424518161 is an apocalyptic number.

It is an amenable number.

424518161 is a deficient number, since it is larger than the sum of its proper divisors (1).

424518161 is an equidigital number, since it uses as much as digits as its factorization.

424518161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 424518161 is about 20603.8385015996. The cubic root of 424518161 is about 751.5630578336.

The spelling of 424518161 in words is "four hundred twenty-four million, five hundred eighteen thousand, one hundred sixty-one".