1745231 has 2 divisors, whose sum is σ = 1745232. Its totient is φ = 1745230.

The previous prime is 1745213. The next prime is 1745239. The reversal of 1745231 is 1325471.

Together with previous prime (1745213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1745231 - 2¹⁸ = 1483087 is a prime.

It is a super-2 number, since 2×1745231² = 6091662486722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1745197 and 1745206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1745239) by changing a digit.

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 as a sum of consecutive naturals, namely, 872615 + 872616.

It is an arithmetic number, because the mean of its divisors is an integer number (872616).

2^1745231 is an apocalyptic number.

1745231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745231 is an equidigital number, since it uses as much as digits as its factorization.

1745231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 1745231 is about 1321.0719132583. The cubic root of 1745231 is about 120.3975472545.

The spelling of 1745231 in words is "one million, seven hundred forty-five thousand, two hundred thirty-one".