415430261 has 2 divisors, whose sum is σ = 415430262. Its totient is φ = 415430260.

The previous prime is 415430243. The next prime is 415430293. The reversal of 415430261 is 162034514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302412100 + 113018161 = 17390^2 + 10631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415430261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 415430261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415430201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207715130 + 207715131.

It is an arithmetic number, because the mean of its divisors is an integer number (207715131).

Almost surely, 2^415430261 is an apocalyptic number.

It is an amenable number.

415430261 is a deficient number, since it is larger than the sum of its proper divisors (1).

415430261 is an equidigital number, since it uses as much as digits as its factorization.

415430261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 415430261 is about 20382.1063926180. The cubic root of 415430261 is about 746.1612812460.

Adding to 415430261 its reverse (162034514), we get a palindrome (577464775).

The spelling of 415430261 in words is "four hundred fifteen million, four hundred thirty thousand, two hundred sixty-one".