401010165 has 24 divisors (see below), whose sum is σ = 696215520. Its totient is φ = 213524064.

The previous prime is 401010163. The next prime is 401010179. The reversal of 401010165 is 561010104.

It is not a de Polignac number, because 401010165 - 2¹ = 401010163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401010163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22006 + ... + 35864.

It is an arithmetic number, because the mean of its divisors is an integer number (29008980).

Almost surely, 2^401010165 is an apocalyptic number.

401010165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

401010165 is a deficient number, since it is larger than the sum of its proper divisors (295205355).

401010165 is a wasteful number, since it uses less digits than its factorization.

401010165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14513 (or 14510 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 401010165 is about 20025.2382008305. The cubic root of 401010165 is about 737.4260249463.

Adding to 401010165 its reverse (561010104), we get a palindrome (962020269).

The spelling of 401010165 in words is "four hundred one million, ten thousand, one hundred sixty-five".