1380001 has 8 divisors (see below), whose sum is σ = 1589760. Its totient is φ = 1173408.

The previous prime is 1379993. The next prime is 1380007. The reversal of 1380001 is 1000831.

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 1380001 - 2³ = 1379993 is a prime.

It is a Duffinian number.

1380001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1380007) 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, 240 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (198720).

2^1380001 is an apocalyptic number.

It is an amenable number.

1380001 is a deficient number, since it is larger than the sum of its proper divisors (209759).

1380001 is a wasteful number, since it uses less digits than its factorization.

1380001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1380001 is about 1174.7344380753. The cubic root of 1380001 is about 111.3336550443. Note that the first 3 decimals are identical.

Adding to 1380001 its reverse (1000831), we get a palindrome (2380832).

The spelling of 1380001 in words is "one million, three hundred eighty thousand, one".