415152221 has 4 divisors (see below), whose sum is σ = 452893344. Its totient is φ = 377411100.

The previous prime is 415152211. The next prime is 415152239. The reversal of 415152221 is 122251514.

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 de Polignac number, because none of the positive numbers 2^k-415152221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415152211) 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, 18870545 + ... + 18870566.

It is an arithmetic number, because the mean of its divisors is an integer number (113223336).

Almost surely, 2^415152221 is an apocalyptic number.

It is an amenable number.

415152221 is a deficient number, since it is larger than the sum of its proper divisors (37741123).

415152221 is a wasteful number, since it uses less digits than its factorization.

415152221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741122.

The product of its digits is 800, while the sum is 23.

The square root of 415152221 is about 20375.2845624300. The cubic root of 415152221 is about 745.9947799878.

The spelling of 415152221 in words is "four hundred fifteen million, one hundred fifty-two thousand, two hundred twenty-one".