1380101 has 6 divisors (see below), whose sum is σ = 1416306. Its totient is φ = 1344800.

The previous prime is 1380083. The next prime is 1380149. The reversal of 1380101 is 1010831.

It can be written as a sum of positive squares in 3 ways, for example, as 112225 + 1267876 = 335^2 + 1126^2 .

It is not a de Polignac number, because 1380101 - 2¹⁴ = 1363717 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1271 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (236051).

2^1380101 is an apocalyptic number.

It is an amenable number.

1380101 is a deficient number, since it is larger than the sum of its proper divisors (36205).

1380101 is an frugal number, since it uses more digits than its factorization.

1380101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1380101 is about 1174.7770001153. Note that the first 3 decimals coincide. The cubic root of 1380101 is about 111.3363441961.

Adding to 1380101 its reverse (1010831), we get a palindrome (2390932).

The spelling of 1380101 in words is "one million, three hundred eighty thousand, one hundred one".