1401205 has 8 divisors (see below), whose sum is σ = 1810872. Its totient is φ = 1034688.

The previous prime is 1401203. The next prime is 1401217. The reversal of 1401205 is 5021041.

It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 1385329 = 126^2 + 1177^2 .

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 1401205 - 2¹ = 1401203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

1401205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10714 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (226359).

2^1401205 is an apocalyptic number.

It is an amenable number.

1401205 is a deficient number, since it is larger than the sum of its proper divisors (409667).

1401205 is a wasteful number, since it uses less digits than its factorization.

1401205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1401205 is about 1183.7250525354. The cubic root of 1401205 is about 111.9009807226.

Adding to 1401205 its reverse (5021041), we get a palindrome (6422246).

The spelling of 1401205 in words is "one million, four hundred one thousand, two hundred five".