63773161 has 2 divisors, whose sum is σ = 63773162. Its totient is φ = 63773160.

The previous prime is 63773147. The next prime is 63773173. The reversal of 63773161 is 16137736.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51912025 + 11861136 = 7205^2 + 3444^2 .

It is a cyclic number.

It is not a de Polignac number, because 63773161 - 2²¹ = 61676009 is a prime.

It is equal to p_3772384 and since 63773161 and 3772384 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (63773131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31886580 + 31886581.

It is an arithmetic number, because the mean of its divisors is an integer number (31886581).

Almost surely, 2^63773161 is an apocalyptic number.

It is an amenable number.

63773161 is a deficient number, since it is larger than the sum of its proper divisors (1).

63773161 is an equidigital number, since it uses as much as digits as its factorization.

63773161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 63773161 is about 7985.8099777042. The cubic root of 63773161 is about 399.5268593154.

The spelling of 63773161 in words is "sixty-three million, seven hundred seventy-three thousand, one hundred sixty-one".