1745245 has 8 divisors (see below), whose sum is σ = 2204640. Its totient is φ = 1322640.

The previous prime is 1745239. The next prime is 1745257. The reversal of 1745245 is 5425471.

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

It is not a de Polignac number, because 1745245 - 2⁵ = 1745213 is a prime.

It is a super-2 number, since 2×1745245² = 6091760220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9091 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (275580).

2^1745245 is an apocalyptic number.

It is an amenable number.

1745245 is a deficient number, since it is larger than the sum of its proper divisors (459395).

1745245 is a wasteful number, since it uses less digits than its factorization.

1745245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18395.

The product of its digits is 5600, while the sum is 28.

The square root of 1745245 is about 1321.0772119751. The cubic root of 1745245 is about 120.3978691911.

The spelling of 1745245 in words is "one million, seven hundred forty-five thousand, two hundred forty-five".