1346776229 has 2 divisors, whose sum is σ = 1346776230. Its totient is φ = 1346776228.

The previous prime is 1346776217. The next prime is 1346776231. The reversal of 1346776229 is 9226776431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1171213729 + 175562500 = 34223^2 + 13250^2 .

It is an emirp because it is prime and its reverse (9226776431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1346776229 - 2⁸ = 1346775973 is a prime.

Together with 1346776231, 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 (1346776289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673388114 + 673388115.

It is an arithmetic number, because the mean of its divisors is an integer number (673388115).

Almost surely, 2^1346776229 is an apocalyptic number.

It is an amenable number.

1346776229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346776229 is an equidigital number, since it uses as much as digits as its factorization.

1346776229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 47.

The square root of 1346776229 is about 36698.4499536425. The cubic root of 1346776229 is about 1104.3290095878.

The spelling of 1346776229 in words is "one billion, three hundred forty-six million, seven hundred seventy-six thousand, two hundred twenty-nine".