401404025135 has 4 divisors (see below), whose sum is σ = 481684830168. Its totient is φ = 321123220104.

The previous prime is 401404025129. The next prime is 401404025159. The reversal of 401404025135 is 531520404104.

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 401404025135 - 2⁴ = 401404025119 is a prime.

It is a super-2 number, since 2×401404025135² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401404025098 and 401404025107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40140402509 + ... + 40140402518.

It is an arithmetic number, because the mean of its divisors is an integer number (120421207542).

Almost surely, 2^401404025135 is an apocalyptic number.

401404025135 is a deficient number, since it is larger than the sum of its proper divisors (80280805033).

401404025135 is an equidigital number, since it uses as much as digits as its factorization.

401404025135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80280805032.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 401404025135 its reverse (531520404104), we get a palindrome (932924429239).

The spelling of 401404025135 in words is "four hundred one billion, four hundred four million, twenty-five thousand, one hundred thirty-five".