1381063 has 4 divisors (see below), whose sum is σ = 1462320. Its totient is φ = 1299808.

The previous prime is 1381057. The next prime is 1381069. The reversal of 1381063 is 3601831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3601831 = 277 ⋅13003.

It is an interprime number because it is at equal distance from previous prime (1381057) and next prime (1381069).

It is a cyclic number.

It is not a de Polignac number, because 1381063 - 2⁹ = 1380551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381069) 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, 40603 + ... + 40636.

It is an arithmetic number, because the mean of its divisors is an integer number (365580).

2^1381063 is an apocalyptic number.

1381063 is a deficient number, since it is larger than the sum of its proper divisors (81257).

1381063 is an equidigital number, since it uses as much as digits as its factorization.

1381063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81256.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1381063 is about 1175.1863681987. The cubic root of 1381063 is about 111.3622072034.

Adding to 1381063 its reverse (3601831), we get a palindrome (4982894).

The spelling of 1381063 in words is "one million, three hundred eighty-one thousand, sixty-three".