1185215 has 4 divisors (see below), whose sum is σ = 1422264. Its totient is φ = 948168.

The previous prime is 1185181. The next prime is 1185241. The reversal of 1185215 is 5125811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1185215 - 2⁸ = 1184959 is a prime.

It is a Duffinian number.

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, 118517 + ... + 118526.

It is an arithmetic number, because the mean of its divisors is an integer number (355566).

2^1185215 is an apocalyptic number.

1185215 is a deficient number, since it is larger than the sum of its proper divisors (237049).

1185215 is an equidigital number, since it uses as much as digits as its factorization.

1185215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237048.

The product of its digits is 400, while the sum is 23.

The square root of 1185215 is about 1088.6758011456. The cubic root of 1185215 is about 105.8276241917.

The spelling of 1185215 in words is "one million, one hundred eighty-five thousand, two hundred fifteen".