1345623 has 8 divisors (see below), whose sum is σ = 1812336. Its totient is φ = 888000.

The previous prime is 1345621. The next prime is 1345627. The reversal of 1345623 is 3265431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1345623 - 2¹ = 1345621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1345593 and 1345602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918 + ... + 2523.

It is an arithmetic number, because the mean of its divisors is an integer number (226542).

2^1345623 is an apocalyptic number.

1345623 is a deficient number, since it is larger than the sum of its proper divisors (466713).

1345623 is a wasteful number, since it uses less digits than its factorization.

1345623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its digits is 2160, while the sum is 24.

The square root of 1345623 is about 1160.0099137507. The cubic root of 1345623 is about 110.4013711497.

The spelling of 1345623 in words is "one million, three hundred forty-five thousand, six hundred twenty-three".