401305115 has 4 divisors (see below), whose sum is σ = 481566144. Its totient is φ = 321044088.

The previous prime is 401305087. The next prime is 401305133. The reversal of 401305115 is 511503104.

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

It is a cyclic number.

It is not a de Polignac number, because 401305115 - 2¹⁴ = 401288731 is a prime.

It is a super-2 number, since 2×401305115² = 322091590650326450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40130507 + ... + 40130516.

It is an arithmetic number, because the mean of its divisors is an integer number (120391536).

Almost surely, 2^401305115 is an apocalyptic number.

401305115 is a deficient number, since it is larger than the sum of its proper divisors (80261029).

401305115 is an equidigital number, since it uses as much as digits as its factorization.

401305115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80261028.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 401305115 is about 20032.6013038746. The cubic root of 401305115 is about 737.6067772239.

Adding to 401305115 its reverse (511503104), we get a palindrome (912808219).

The spelling of 401305115 in words is "four hundred one million, three hundred five thousand, one hundred fifteen".