63178061 has 2 divisors, whose sum is σ = 63178062. Its totient is φ = 63178060.

The previous prime is 63178039. The next prime is 63178081. The reversal of 63178061 is 16087136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62568100 + 609961 = 7910^2 + 781^2 .

It is a cyclic number.

It is not a de Polignac number, because 63178061 - 2⁶ = 63177997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63178081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31589030 + 31589031.

It is an arithmetic number, because the mean of its divisors is an integer number (31589031).

Almost surely, 2^63178061 is an apocalyptic number.

It is an amenable number.

63178061 is a deficient number, since it is larger than the sum of its proper divisors (1).

63178061 is an equidigital number, since it uses as much as digits as its factorization.

63178061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 63178061 is about 7948.4628073609. The cubic root of 63178061 is about 398.2802437761.

The spelling of 63178061 in words is "sixty-three million, one hundred seventy-eight thousand, sixty-one".