63120287 has 2 divisors, whose sum is σ = 63120288. Its totient is φ = 63120286.

The previous prime is 63120251. The next prime is 63120293. The reversal of 63120287 is 78202136.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63120287 - 2¹⁸ = 62858143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63120217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31560143 + 31560144.

It is an arithmetic number, because the mean of its divisors is an integer number (31560144).

Almost surely, 2^63120287 is an apocalyptic number.

63120287 is a deficient number, since it is larger than the sum of its proper divisors (1).

63120287 is an equidigital number, since it uses as much as digits as its factorization.

63120287 is an odious number, because the sum of its binary digits is odd.

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

The square root of 63120287 is about 7944.8276885028. The cubic root of 63120287 is about 398.1588025669.

The spelling of 63120287 in words is "sixty-three million, one hundred twenty thousand, two hundred eighty-seven".