61361077 has 2 divisors, whose sum is σ = 61361078. Its totient is φ = 61361076.

The previous prime is 61361017. The next prime is 61361081. The reversal of 61361077 is 77016316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58354321 + 3006756 = 7639^2 + 1734^2 .

It is a cyclic number.

It is not a de Polignac number, because 61361077 - 2¹¹ = 61359029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61361017) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30680538 + 30680539.

It is an arithmetic number, because the mean of its divisors is an integer number (30680539).

Almost surely, 2^61361077 is an apocalyptic number.

It is an amenable number.

61361077 is a deficient number, since it is larger than the sum of its proper divisors (1).

61361077 is an equidigital number, since it uses as much as digits as its factorization.

61361077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 61361077 is about 7833.3311560281. The cubic root of 61361077 is about 394.4249004195.

The spelling of 61361077 in words is "sixty-one million, three hundred sixty-one thousand, seventy-seven".