415043261 has 2 divisors, whose sum is σ = 415043262. Its totient is φ = 415043260.

The previous prime is 415043231. The next prime is 415043339. The reversal of 415043261 is 162340514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245548900 + 169494361 = 15670^2 + 13019^2 .

It is a cyclic number.

It is not a de Polignac number, because 415043261 - 2⁶ = 415043197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 415043261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415043231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207521630 + 207521631.

It is an arithmetic number, because the mean of its divisors is an integer number (207521631).

Almost surely, 2^415043261 is an apocalyptic number.

It is an amenable number.

415043261 is a deficient number, since it is larger than the sum of its proper divisors (1).

415043261 is an equidigital number, since it uses as much as digits as its factorization.

415043261 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 26.

The square root of 415043261 is about 20372.6105592779. The cubic root of 415043261 is about 745.9295101909.

Adding to 415043261 its reverse (162340514), we get a palindrome (577383775).

The spelling of 415043261 in words is "four hundred fifteen million, forty-three thousand, two hundred sixty-one".