1368215 has 4 divisors (see below), whose sum is σ = 1641864. Its totient is φ = 1094568.

The previous prime is 1368203. The next prime is 1368229. The reversal of 1368215 is 5128631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5128631 = 1831 ⋅2801.

It is a cyclic number.

It is not a de Polignac number, because 1368215 - 2²⁰ = 319639 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136817 + ... + 136826.

It is an arithmetic number, because the mean of its divisors is an integer number (410466).

2^1368215 is an apocalyptic number.

1368215 is a deficient number, since it is larger than the sum of its proper divisors (273649).

1368215 is an equidigital number, since it uses as much as digits as its factorization.

1368215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273648.

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

The square root of 1368215 is about 1169.7072283268. The cubic root of 1368215 is about 111.0157973350.

The spelling of 1368215 in words is "one million, three hundred sixty-eight thousand, two hundred fifteen".