415540201 has 4 divisors (see below), whose sum is σ = 415582804. Its totient is φ = 415497600.

The previous prime is 415540187. The next prime is 415540219. The reversal of 415540201 is 102045514.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102045514 = 2 ⋅51022757.

It can be written as a sum of positive squares in 2 ways, for example, as 265722601 + 149817600 = 16301^2 + 12240^2 .

It is a cyclic number.

It is not a de Polignac number, because 415540201 - 2¹³ = 415532009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (415540501) 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, 1381 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (103895701).

Almost surely, 2^415540201 is an apocalyptic number.

It is an amenable number.

415540201 is a deficient number, since it is larger than the sum of its proper divisors (42603).

415540201 is a wasteful number, since it uses less digits than its factorization.

415540201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42602.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 415540201 is about 20384.8031876690. The cubic root of 415540201 is about 746.2270971351.

Adding to 415540201 its reverse (102045514), we get a palindrome (517585715).

The spelling of 415540201 in words is "four hundred fifteen million, five hundred forty thousand, two hundred one".