1401165 has 32 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 732672.

The previous prime is 1401151. The next prime is 1401167. The reversal of 1401165 is 5611041.

It is not a de Polignac number, because 1401165 - 2⁹ = 1400653 is a prime.

1401165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13042 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2^1401165 is an apocalyptic number.

1401165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401165 is a deficient number, since it is larger than the sum of its proper divisors (1138995).

1401165 is a wasteful number, since it uses less digits than its factorization.

1401165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

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

The square root of 1401165 is about 1183.7081565994. The cubic root of 1401165 is about 111.8999159053.

The spelling of 1401165 in words is "one million, four hundred one thousand, one hundred sixty-five".