1345823 has 4 divisors (see below), whose sum is σ = 1358280. Its totient is φ = 1333368.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345823 is 3285431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1345823 - 2⁶ = 1345759 is a prime.

It is a super-2 number, since 2×1345823² = 3622479094658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345792 and 1345801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (339570).

2^1345823 is an apocalyptic number.

1345823 is a deficient number, since it is larger than the sum of its proper divisors (12457).

1345823 is a wasteful number, since it uses less digits than its factorization.

1345823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12456.

The product of its digits is 2880, while the sum is 26.

The square root of 1345823 is about 1160.0961167076. The cubic root of 1345823 is about 110.4068405322.

The spelling of 1345823 in words is "one million, three hundred forty-five thousand, eight hundred twenty-three".