61226171 has 2 divisors, whose sum is σ = 61226172. Its totient is φ = 61226170.

The previous prime is 61226119. The next prime is 61226219. The reversal of 61226171 is 17162216.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61226171 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61226171.

It is not a weakly prime, because it can be changed into another prime (61226071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30613085 + 30613086.

It is an arithmetic number, because the mean of its divisors is an integer number (30613086).

Almost surely, 2^61226171 is an apocalyptic number.

61226171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61226171 is an equidigital number, since it uses as much as digits as its factorization.

61226171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 61226171 is about 7824.7153941853. The cubic root of 61226171 is about 394.1356327423.

Adding to 61226171 its reverse (17162216), we get a palindrome (78388387).

The spelling of 61226171 in words is "sixty-one million, two hundred twenty-six thousand, one hundred seventy-one".