1380523 has 4 divisors (see below), whose sum is σ = 1425088. Its totient is φ = 1335960.

The previous prime is 1380517. The next prime is 1380551. The reversal of 1380523 is 3250831.

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 1380523 - 2¹³ = 1372331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380494 and 1380503.

It is not an unprimeable number, because it can be changed into a prime (1380563) 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, 22236 + ... + 22297.

It is an arithmetic number, because the mean of its divisors is an integer number (356272).

2^1380523 is an apocalyptic number.

1380523 is a deficient number, since it is larger than the sum of its proper divisors (44565).

1380523 is an equidigital number, since it uses as much as digits as its factorization.

1380523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44564.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1380523 is about 1174.9565949430. The cubic root of 1380523 is about 111.3476909862.

The spelling of 1380523 in words is "one million, three hundred eighty thousand, five hundred twenty-three".