8012180261 has 2 divisors, whose sum is σ = 8012180262. Its totient is φ = 8012180260.

The previous prime is 8012180227. The next prime is 8012180279. The reversal of 8012180261 is 1620812108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832224161 + 2179956100 = 76369^2 + 46690^2 .

It is a cyclic number.

It is not a de Polignac number, because 8012180261 - 2²² = 8007985957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8012180161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4006090130 + 4006090131.

It is an arithmetic number, because the mean of its divisors is an integer number (4006090131).

Almost surely, 2^8012180261 is an apocalyptic number.

It is an amenable number.

8012180261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8012180261 is an equidigital number, since it uses as much as digits as its factorization.

8012180261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 8012180261 is about 89510.7829314435. The cubic root of 8012180261 is about 2001.0145070507.

Adding to 8012180261 its reverse (1620812108), we get a palindrome (9632992369).

The spelling of 8012180261 in words is "eight billion, twelve million, one hundred eighty thousand, two hundred sixty-one".