245741 has 2 divisors, whose sum is σ = 245742. Its totient is φ = 245740.

The previous prime is 245723. The next prime is 245747. The reversal of 245741 is 147542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126025 + 119716 = 355^2 + 346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245741 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122870 + 122871.

It is an arithmetic number, because the mean of its divisors is an integer number (122871).

2²⁴⁵⁷⁴¹ is an apocalyptic number.

It is an amenable number.

245741 is a deficient number, since it is larger than the sum of its proper divisors (1).

245741 is an equidigital number, since it uses as much as digits as its factorization.

245741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 23.

The square root of 245741 is about 495.7227047453. The cubic root of 245741 is about 62.6362680139.

The spelling of 245741 in words is "two hundred forty-five thousand, seven hundred forty-one".