1346621266 has 4 divisors (see below), whose sum is σ = 2019931902. Its totient is φ = 673310632.

The previous prime is 1346621249. The next prime is 1346621303. The reversal of 1346621266 is 6621266431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6621266431 = 13 ⋅509328187.

It can be written as a sum of positive squares in only one way, i.e., 830650041 + 515971225 = 28821^2 + 22715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336655315 + ... + 336655318.

Almost surely, 2^1346621266 is an apocalyptic number.

1346621266 is a deficient number, since it is larger than the sum of its proper divisors (673310636).

1346621266 is an equidigital number, since it uses as much as digits as its factorization.

1346621266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673310635.

The product of its digits is 62208, while the sum is 37.

The square root of 1346621266 is about 36696.3385912001. The cubic root of 1346621266 is about 1104.2866524645.

Adding to 1346621266 its reverse (6621266431), we get a palindrome (7967887697).

The spelling of 1346621266 in words is "one billion, three hundred forty-six million, six hundred twenty-one thousand, two hundred sixty-six".