1345816 has 8 divisors (see below), whose sum is σ = 2523420. Its totient is φ = 672904.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345816 is 6185431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1345816² = 3622441411712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345811) by changing a digit.

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, 84106 + ... + 84121.

2^1345816 is an apocalyptic number.

It is an amenable number.

1345816 is a deficient number, since it is larger than the sum of its proper divisors (1177604).

1345816 is a wasteful number, since it uses less digits than its factorization.

1345816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168233 (or 168229 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 1345816 is about 1160.0930997123. The cubic root of 1345816 is about 110.4066491129.

The spelling of 1345816 in words is "one million, three hundred forty-five thousand, eight hundred sixteen".