1205315 has 16 divisors (see below), whose sum is σ = 1548288. Its totient is φ = 898656.

The previous prime is 1205293. The next prime is 1205339. The reversal of 1205315 is 5135021.

It is not a de Polignac number, because 1205315 - 2⁶ = 1205251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205293 and 1205302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5294 + ... + 5516.

It is an arithmetic number, because the mean of its divisors is an integer number (96768).

2^1205315 is an apocalyptic number.

1205315 is a deficient number, since it is larger than the sum of its proper divisors (342973).

1205315 is a wasteful number, since it uses less digits than its factorization.

1205315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1205315 is about 1097.8683891979. The cubic root of 1205315 is about 106.4225155867.

The spelling of 1205315 in words is "one million, two hundred five thousand, three hundred fifteen".