1315229 has 2 divisors, whose sum is σ = 1315230. Its totient is φ = 1315228.

The previous prime is 1315213. The next prime is 1315231. The reversal of 1315229 is 9225131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 996004 + 319225 = 998^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315229 - 2⁴ = 1315213 is a prime.

Together with 1315231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657614 + 657615.

It is an arithmetic number, because the mean of its divisors is an integer number (657615).

2^1315229 is an apocalyptic number.

It is an amenable number.

1315229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315229 is an equidigital number, since it uses as much as digits as its factorization.

1315229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 1315229 is about 1146.8343385162. The cubic root of 1315229 is about 109.5638098229.

The spelling of 1315229 in words is "one million, three hundred fifteen thousand, two hundred twenty-nine".