245042041 has 2 divisors, whose sum is σ = 245042042. Its totient is φ = 245042040.

The previous prime is 245042027. The next prime is 245042081. The reversal of 245042041 is 140240542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196112016 + 48930025 = 14004^2 + 6995^2 .

It is a cyclic number.

It is not a de Polignac number, because 245042041 - 2⁷ = 245041913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245042081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122521020 + 122521021.

It is an arithmetic number, because the mean of its divisors is an integer number (122521021).

Almost surely, 2^245042041 is an apocalyptic number.

It is an amenable number.

245042041 is a deficient number, since it is larger than the sum of its proper divisors (1).

245042041 is an equidigital number, since it uses as much as digits as its factorization.

245042041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 245042041 is about 15653.8187353757. The cubic root of 245042041 is about 625.7682635668.

Adding to 245042041 its reverse (140240542), we get a palindrome (385282583).

The spelling of 245042041 in words is "two hundred forty-five million, forty-two thousand, forty-one".