1381019 has 4 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 1336440.

The previous prime is 1380997. The next prime is 1381027. The reversal of 1381019 is 9101831.

1381019 is nontrivially palindromic in base 3.

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 1381019 - 2⁸ = 1380763 is a prime.

It is a super-2 number, since 2×1381019² = 3814426956722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380985 and 1381003.

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, 22244 + ... + 22305.

It is an arithmetic number, because the mean of its divisors is an integer number (356400).

2^1381019 is an apocalyptic number.

1381019 is a deficient number, since it is larger than the sum of its proper divisors (44581).

1381019 is an equidigital number, since it uses as much as digits as its factorization.

1381019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44580.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1381019 is about 1175.1676476146. The cubic root of 1381019 is about 111.3610245421.

The spelling of 1381019 in words is "one million, three hundred eighty-one thousand, nineteen".