1215341 has 4 divisors (see below), whose sum is σ = 1236000. Its totient is φ = 1194684.

The previous prime is 1215329. The next prime is 1215349. The reversal of 1215341 is 1435121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10241 + ... + 10358.

It is an arithmetic number, because the mean of its divisors is an integer number (309000).

2^1215341 is an apocalyptic number.

It is an amenable number.

1215341 is a deficient number, since it is larger than the sum of its proper divisors (20659).

1215341 is an equidigital number, since it uses as much as digits as its factorization.

1215341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20658.

The product of its digits is 120, while the sum is 17.

The square root of 1215341 is about 1102.4250541420. The cubic root of 1215341 is about 106.7167809221.

The spelling of 1215341 in words is "one million, two hundred fifteen thousand, three hundred forty-one".