415135021 has 4 divisors (see below), whose sum is σ = 474440032. Its totient is φ = 355830012.

The previous prime is 415134991. The next prime is 415135031. The reversal of 415135021 is 120531514.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 415135021 - 2⁵ = 415134989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415134983 and 415135001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415135031) 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 in 3 ways as a sum of consecutive naturals, for example, 29652495 + ... + 29652508.

It is an arithmetic number, because the mean of its divisors is an integer number (118610008).

Almost surely, 2^415135021 is an apocalyptic number.

It is an amenable number.

415135021 is a deficient number, since it is larger than the sum of its proper divisors (59305011).

415135021 is an equidigital number, since it uses as much as digits as its factorization.

415135021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59305010.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 415135021 is about 20374.8624780635. The cubic root of 415135021 is about 745.9844775117.

Adding to 415135021 its reverse (120531514), we get a palindrome (535666535).

The spelling of 415135021 in words is "four hundred fifteen million, one hundred thirty-five thousand, twenty-one".