1345229 has 2 divisors, whose sum is σ = 1345230. Its totient is φ = 1345228.

The previous prime is 1345207. The next prime is 1345231. The reversal of 1345229 is 9225431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 84100 = 1123^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345229 - 2¹⁶ = 1279693 is a prime.

Together with 1345231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1345198 and 1345207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672614 + 672615.

It is an arithmetic number, because the mean of its divisors is an integer number (672615).

2^1345229 is an apocalyptic number.

It is an amenable number.

1345229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345229 is an equidigital number, since it uses as much as digits as its factorization.

1345229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1345229 is about 1159.8400751828. The cubic root of 1345229 is about 110.3905948807.

The spelling of 1345229 in words is "one million, three hundred forty-five thousand, two hundred twenty-nine".