61545227 has 2 divisors, whose sum is σ = 61545228. Its totient is φ = 61545226.

The previous prime is 61545203. The next prime is 61545271. The reversal of 61545227 is 72254516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61545227 - 2¹⁴ = 61528843 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61545193 and 61545202.

It is not a weakly prime, because it can be changed into another prime (61545277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30772613 + 30772614.

It is an arithmetic number, because the mean of its divisors is an integer number (30772614).

Almost surely, 2^61545227 is an apocalyptic number.

61545227 is a deficient number, since it is larger than the sum of its proper divisors (1).

61545227 is an equidigital number, since it uses as much as digits as its factorization.

61545227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The square root of 61545227 is about 7845.0766089312. The cubic root of 61545227 is about 394.8190743279.

The spelling of 61545227 in words is "sixty-one million, five hundred forty-five thousand, two hundred twenty-seven".