1236313 has 4 divisors (see below), whose sum is σ = 1331428. Its totient is φ = 1141200.

The previous prime is 1236307. The next prime is 1236317. The reversal of 1236313 is 3136321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 974169 = 512^2 + 987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1236313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1236317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47538 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (332857).

2^1236313 is an apocalyptic number.

1236313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1236313 is a deficient number, since it is larger than the sum of its proper divisors (95115).

1236313 is an equidigital number, since it uses as much as digits as its factorization.

1236313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95114.

The product of its digits is 324, while the sum is 19.

The square root of 1236313 is about 1111.8961282422. The cubic root of 1236313 is about 107.3271207220.

The spelling of 1236313 in words is "one million, two hundred thirty-six thousand, three hundred thirteen".