1379215 has 8 divisors (see below), whose sum is σ = 1690560. Its totient is φ = 1079712.

The previous prime is 1379207. The next prime is 1379237. The reversal of 1379215 is 5129731.

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 1379215 - 2³ = 1379207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700 + ... + 3169.

It is an arithmetic number, because the mean of its divisors is an integer number (211320).

2^1379215 is an apocalyptic number.

1379215 is a deficient number, since it is larger than the sum of its proper divisors (311345).

1379215 is an equidigital number, since it uses as much as digits as its factorization.

1379215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921.

The product of its digits is 1890, while the sum is 28.

The square root of 1379215 is about 1174.3998467302. The cubic root of 1379215 is about 111.3125137862.

The spelling of 1379215 in words is "one million, three hundred seventy-nine thousand, two hundred fifteen".