415511231 has 2 divisors, whose sum is σ = 415511232. Its totient is φ = 415511230.

The previous prime is 415511207. The next prime is 415511269. The reversal of 415511231 is 132115514.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415511231 is a prime.

It is a super-2 number, since 2×415511231² = 345299166174270722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 415511197 and 415511206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415517231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207755615 + 207755616.

It is an arithmetic number, because the mean of its divisors is an integer number (207755616).

Almost surely, 2^415511231 is an apocalyptic number.

415511231 is a deficient number, since it is larger than the sum of its proper divisors (1).

415511231 is an equidigital number, since it uses as much as digits as its factorization.

415511231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 23.

The square root of 415511231 is about 20384.0925969247. The cubic root of 415511231 is about 746.2097552900.

Adding to 415511231 its reverse (132115514), we get a palindrome (547626745).

The spelling of 415511231 in words is "four hundred fifteen million, five hundred eleven thousand, two hundred thirty-one".