415231109 has 2 divisors, whose sum is σ = 415231110. Its totient is φ = 415231108.

The previous prime is 415231051. The next prime is 415231127. The reversal of 415231109 is 901132514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404894884 + 10336225 = 20122^2 + 3215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415231109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415431109) 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, 207615554 + 207615555.

It is an arithmetic number, because the mean of its divisors is an integer number (207615555).

Almost surely, 2^415231109 is an apocalyptic number.

It is an amenable number.

415231109 is a deficient number, since it is larger than the sum of its proper divisors (1).

415231109 is an equidigital number, since it uses as much as digits as its factorization.

415231109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 415231109 is about 20377.2203452777. The cubic root of 415231109 is about 746.0420287687.

The spelling of 415231109 in words is "four hundred fifteen million, two hundred thirty-one thousand, one hundred nine".