1381265 has 8 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 1056880.

The previous prime is 1381231. The next prime is 1381271. The reversal of 1381265 is 5621831.

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

It is not a de Polignac number, because 1381265 - 2¹⁰ = 1380241 is a prime.

It is a Duffinian 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, 5891 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (216216).

2^1381265 is an apocalyptic number.

It is an amenable number.

1381265 is a deficient number, since it is larger than the sum of its proper divisors (348463).

1381265 is a wasteful number, since it uses less digits than its factorization.

1381265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12039.

The product of its digits is 1440, while the sum is 26.

The square root of 1381265 is about 1175.2723088714. The cubic root of 1381265 is about 111.3676363714.

The spelling of 1381265 in words is "one million, three hundred eighty-one thousand, two hundred sixty-five".