415128229 has 4 divisors (see below), whose sum is σ = 415613484. Its totient is φ = 414642976.

The previous prime is 415128227. The next prime is 415128247. The reversal of 415128229 is 922821514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313219204 + 101909025 = 17698^2 + 10095^2 .

It is a cyclic number.

It is not a de Polignac number, because 415128229 - 2¹ = 415128227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415128194 and 415128203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415128227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241342 + ... + 243055.

It is an arithmetic number, because the mean of its divisors is an integer number (103903371).

Almost surely, 2^415128229 is an apocalyptic number.

It is an amenable number.

415128229 is a deficient number, since it is larger than the sum of its proper divisors (485255).

415128229 is an equidigital number, since it uses as much as digits as its factorization.

415128229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485254.

The product of its digits is 11520, while the sum is 34.

The square root of 415128229 is about 20374.6958014101. The cubic root of 415128229 is about 745.9804091533.

The spelling of 415128229 in words is "four hundred fifteen million, one hundred twenty-eight thousand, two hundred twenty-nine".