41143145261 has 2 divisors, whose sum is σ = 41143145262. Its totient is φ = 41143145260.

The previous prime is 41143145179. The next prime is 41143145291. The reversal of 41143145261 is 16254134114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34496004361 + 6647140900 = 185731^2 + 81530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41143145261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41143145291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20571572630 + 20571572631.

It is an arithmetic number, because the mean of its divisors is an integer number (20571572631).

Almost surely, 2^41143145261 is an apocalyptic number.

It is an amenable number.

41143145261 is a deficient number, since it is larger than the sum of its proper divisors (1).

41143145261 is an equidigital number, since it uses as much as digits as its factorization.

41143145261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

Adding to 41143145261 its reverse (16254134114), we get a palindrome (57397279375).

The spelling of 41143145261 in words is "forty-one billion, one hundred forty-three million, one hundred forty-five thousand, two hundred sixty-one".