1345825 has 24 divisors (see below), whose sum is σ = 1859256. Its totient is φ = 960000.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345825 is 5285431.

It can be written as a sum of positive squares in 12 ways, for example, as 583696 + 762129 = 764^2 + 873^2 .

It is not a de Polignac number, because 1345825 - 2¹⁵ = 1313057 is a prime.

It is a super-2 number, since 2×1345825² = 3622489861250, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (4800) is a multiple of the sum of its prime divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 1345793 and 1345802.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 13275 + ... + 13375.

It is an arithmetic number, because the mean of its divisors is an integer number (77469).

2^1345825 is an apocalyptic number.

It is an amenable number.

1345825 is a deficient number, since it is larger than the sum of its proper divisors (513431).

1345825 is a wasteful number, since it uses less digits than its factorization.

1345825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1345825 is about 1160.0969787048. The cubic root of 1345825 is about 110.4068952233.

The spelling of 1345825 in words is "one million, three hundred forty-five thousand, eight hundred twenty-five".