415631081 has 2 divisors, whose sum is σ = 415631082. Its totient is φ = 415631080.

The previous prime is 415630993. The next prime is 415631119. The reversal of 415631081 is 180136514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393625600 + 22005481 = 19840^2 + 4691^2 .

It is a cyclic number.

It is not a de Polignac number, because 415631081 - 2¹⁰ = 415630057 is a prime.

It is a super-2 number, since 2×415631081² = 345498390986457122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (415633081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207815540 + 207815541.

It is an arithmetic number, because the mean of its divisors is an integer number (207815541).

Almost surely, 2^415631081 is an apocalyptic number.

It is an amenable number.

415631081 is a deficient number, since it is larger than the sum of its proper divisors (1).

415631081 is an equidigital number, since it uses as much as digits as its factorization.

415631081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 415631081 is about 20387.0321773425. The cubic root of 415631081 is about 746.2814939380.

Adding to 415631081 its reverse (180136514), we get a palindrome (595767595).

The spelling of 415631081 in words is "four hundred fifteen million, six hundred thirty-one thousand, eighty-one".