1381007 has 4 divisors (see below), whose sum is σ = 1383480. Its totient is φ = 1378536.

The previous prime is 1380997. The next prime is 1381027. The reversal of 1381007 is 7001831.

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 1381007 - 2¹⁸ = 1118863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1381007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381027) 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, 44 + ... + 1662.

It is an arithmetic number, because the mean of its divisors is an integer number (345870).

2^1381007 is an apocalyptic number.

1381007 is a deficient number, since it is larger than the sum of its proper divisors (2473).

1381007 is an equidigital number, since it uses as much as digits as its factorization.

1381007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1381007 is about 1175.1625419490. The cubic root of 1381007 is about 111.3607019938.

Adding to 1381007 its reverse (7001831), we get a palindrome (8382838).

The spelling of 1381007 in words is "one million, three hundred eighty-one thousand, seven".