1315211 has 2 divisors, whose sum is σ = 1315212. Its totient is φ = 1315210.

The previous prime is 1315187. The next prime is 1315213. The reversal of 1315211 is 1125131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1315211 - 2¹⁸ = 1053067 is a prime.

It is a Sophie Germain prime.

Together with 1315213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1315213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657605 + 657606.

It is an arithmetic number, because the mean of its divisors is an integer number (657606).

2^1315211 is an apocalyptic number.

1315211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315211 is an equidigital number, since it uses as much as digits as its factorization.

1315211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30, while the sum is 14.

The square root of 1315211 is about 1146.8264907997. The cubic root of 1315211 is about 109.5633099968.

The spelling of 1315211 in words is "one million, three hundred fifteen thousand, two hundred eleven".