61164227 has 2 divisors, whose sum is σ = 61164228. Its totient is φ = 61164226.

The previous prime is 61164221. The next prime is 61164239. The reversal of 61164227 is 72246116.

61164227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61164227 - 2¹⁶ = 61098691 is a prime.

It is equal to p_3627119 and since 61164227 and 3627119 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61164227.

It is not a weakly prime, because it can be changed into another prime (61164221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30582113 + 30582114.

It is an arithmetic number, because the mean of its divisors is an integer number (30582114).

Almost surely, 2^61164227 is an apocalyptic number.

61164227 is a deficient number, since it is larger than the sum of its proper divisors (1).

61164227 is an equidigital number, since it uses as much as digits as its factorization.

61164227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 61164227 is about 7820.7561654868. The cubic root of 61164227 is about 394.0026690363.

The spelling of 61164227 in words is "sixty-one million, one hundred sixty-four thousand, two hundred twenty-seven".