1381015 has 8 divisors (see below), whose sum is σ = 1744560. Its totient is φ = 1046592.

The previous prime is 1380997. The next prime is 1381027. The reversal of 1381015 is 5101831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1381015 - 2⁵ = 1380983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1380983 and 1381001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7174 + ... + 7363.

It is an arithmetic number, because the mean of its divisors is an integer number (218070).

2^1381015 is an apocalyptic number.

1381015 is a deficient number, since it is larger than the sum of its proper divisors (363545).

1381015 is a wasteful number, since it uses less digits than its factorization.

1381015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14561.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1381015 is about 1175.1659457285. The cubic root of 1381015 is about 111.3609170262.

Adding to 1381015 its reverse (5101831), we get a palindrome (6482846).

The spelling of 1381015 in words is "one million, three hundred eighty-one thousand, fifteen".