434402161 has 2 divisors, whose sum is σ = 434402162. Its totient is φ = 434402160.

The previous prime is 434402123. The next prime is 434402197. The reversal of 434402161 is 161204434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351937600 + 82464561 = 18760^2 + 9081^2 .

It is a cyclic number.

It is not a de Polignac number, because 434402161 - 2¹³ = 434393969 is a prime.

It is not a weakly prime, because it can be changed into another prime (434403161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217201080 + 217201081.

It is an arithmetic number, because the mean of its divisors is an integer number (217201081).

Almost surely, 2^434402161 is an apocalyptic number.

It is an amenable number.

434402161 is a deficient number, since it is larger than the sum of its proper divisors (1).

434402161 is an equidigital number, since it uses as much as digits as its factorization.

434402161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 434402161 is about 20842.3165938914. The cubic root of 434402161 is about 757.3512136115.

Adding to 434402161 its reverse (161204434), we get a palindrome (595606595).

The spelling of 434402161 in words is "four hundred thirty-four million, four hundred two thousand, one hundred sixty-one".