1345216 has 14 divisors (see below), whose sum is σ = 2669540. Its totient is φ = 672576.

The previous prime is 1345207. The next prime is 1345229. The reversal of 1345216 is 6125431.

1345216 is nontrivially palindromic in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10446 + ... + 10573.

2^1345216 is an apocalyptic number.

1345216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1345216 is a deficient number, since it is larger than the sum of its proper divisors (1324324).

1345216 is an equidigital number, since it uses as much as digits as its factorization.

1345216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031 (or 21021 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1345216 is about 1159.8344709483. The cubic root of 1345216 is about 110.3902392827.

The spelling of 1345216 in words is "one million, three hundred forty-five thousand, two hundred sixteen".