123254944487 has 2 divisors, whose sum is σ = 123254944488. Its totient is φ = 123254944486.

The previous prime is 123254944459. The next prime is 123254944531. The reversal of 123254944487 is 784449452321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123254944487 - 2¹⁴ = 123254928103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123254944387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61627472243 + 61627472244.

It is an arithmetic number, because the mean of its divisors is an integer number (61627472244).

Almost surely, 2^123254944487 is an apocalyptic number.

123254944487 is a deficient number, since it is larger than the sum of its proper divisors (1).

123254944487 is an equidigital number, since it uses as much as digits as its factorization.

123254944487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 53.

The spelling of 123254944487 in words is "one hundred twenty-three billion, two hundred fifty-four million, nine hundred forty-four thousand, four hundred eighty-seven".