1380903 has 4 divisors (see below), whose sum is σ = 1841208. Its totient is φ = 920600.

The previous prime is 1380889. The next prime is 1380913. The reversal of 1380903 is 3090831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380903 - 2⁴ = 1380887 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380913) 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, 230148 + ... + 230153.

It is an arithmetic number, because the mean of its divisors is an integer number (460302).

2^1380903 is an apocalyptic number.

1380903 is a deficient number, since it is larger than the sum of its proper divisors (460305).

1380903 is an equidigital number, since it uses as much as digits as its factorization.

1380903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460304.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1380903 is about 1175.1182919179. The cubic root of 1380903 is about 111.3579064966.

The spelling of 1380903 in words is "one million, three hundred eighty thousand, nine hundred three".