1380901 has 4 divisors (see below), whose sum is σ = 1453600. Its totient is φ = 1308204.

The previous prime is 1380889. The next prime is 1380913. The reversal of 1380901 is 1090831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1090831 = 7 ⋅155833.

It is an interprime number because it is at equal distance from previous prime (1380889) and next prime (1380913).

It is a cyclic number.

It is not a de Polignac number, because 1380901 - 2⁹ = 1380389 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36321 + ... + 36358.

It is an arithmetic number, because the mean of its divisors is an integer number (363400).

2^1380901 is an apocalyptic number.

It is an amenable number.

1380901 is a deficient number, since it is larger than the sum of its proper divisors (72699).

1380901 is an equidigital number, since it uses as much as digits as its factorization.

1380901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72698.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1380901 is about 1175.1174409394. The cubic root of 1380901 is about 111.3578527356.

The spelling of 1380901 in words is "one million, three hundred eighty thousand, nine hundred one".