128246463 has 16 divisors (see below), whose sum is σ = 190792800. Its totient is φ = 85138560.

The previous prime is 128246407. The next prime is 128246479. The reversal of 128246463 is 364642821.

128246463 is a `hidden beast` number, since 1 + 2 + 8 + 2 + 4 + 646 + 3 = 666.

It is not a de Polignac number, because 128246463 - 2²⁰ = 127197887 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128244463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3348 + ... + 16361.

It is an arithmetic number, because the mean of its divisors is an integer number (11924550).

Almost surely, 2^128246463 is an apocalyptic number.

128246463 is a deficient number, since it is larger than the sum of its proper divisors (62546337).

128246463 is a wasteful number, since it uses less digits than its factorization.

128246463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19959 (or 19953 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 128246463 is about 11324.5954894645. The cubic root of 128246463 is about 504.2916749901.

The spelling of 128246463 in words is "one hundred twenty-eight million, two hundred forty-six thousand, four hundred sixty-three".