412631161 has 2 divisors, whose sum is σ = 412631162. Its totient is φ = 412631160.

The previous prime is 412631159. The next prime is 412631171. The reversal of 412631161 is 161136214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410305536 + 2325625 = 20256^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 412631161 - 2¹ = 412631159 is a prime.

Together with 412631159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (412631101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206315580 + 206315581.

It is an arithmetic number, because the mean of its divisors is an integer number (206315581).

Almost surely, 2^412631161 is an apocalyptic number.

It is an amenable number.

412631161 is a deficient number, since it is larger than the sum of its proper divisors (1).

412631161 is an equidigital number, since it uses as much as digits as its factorization.

412631161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 412631161 is about 20313.3247155654. The cubic root of 412631161 is about 744.4816663888.

Adding to 412631161 its reverse (161136214), we get a palindrome (573767375).

It can be divided in two parts, 41263 and 1161, that added together give a palindrome (42424).

The spelling of 412631161 in words is "four hundred twelve million, six hundred thirty-one thousand, one hundred sixty-one".