401136605 has 8 divisors (see below), whose sum is σ = 481523712. Its totient is φ = 320802768.

The previous prime is 401136601. The next prime is 401136611. The reversal of 401136605 is 506631104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401136605 - 2² = 401136601 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 (401136601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5732 + ... + 28898.

It is an arithmetic number, because the mean of its divisors is an integer number (60190464).

Almost surely, 2^401136605 is an apocalyptic number.

It is an amenable number.

401136605 is a deficient number, since it is larger than the sum of its proper divisors (80387107).

401136605 is a wasteful number, since it uses less digits than its factorization.

401136605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26635.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 401136605 is about 20028.3949681446. The cubic root of 401136605 is about 737.5035211936.

Adding to 401136605 its reverse (506631104), we get a palindrome (907767709).

The spelling of 401136605 in words is "four hundred one million, one hundred thirty-six thousand, six hundred five".