1380123 has 12 divisors (see below), whose sum is σ = 2017080. Its totient is φ = 909216.

The previous prime is 1380083. The next prime is 1380149. The reversal of 1380123 is 3210831.

It is not a de Polignac number, because 1380123 - 2⁸ = 1379867 is a prime.

1380123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1380096 and 1380105.

It is not an unprimeable number, because it can be changed into a prime (1380163) 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 11 ways as a sum of consecutive naturals, for example, 61 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (168090).

2^1380123 is an apocalyptic number.

1380123 is a deficient number, since it is larger than the sum of its proper divisors (636957).

1380123 is a wasteful number, since it uses less digits than its factorization.

1380123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1380123 is about 1174.7863635572. The cubic root of 1380123 is about 111.3369357921.

Adding to 1380123 its reverse (3210831), we get a palindrome (4590954).

It can be divided in two parts, 13801 and 23, that added together give a cube (13824 = 24³).

The spelling of 1380123 in words is "one million, three hundred eighty thousand, one hundred twenty-three".