128087463 has 16 divisors (see below), whose sum is σ = 195422720. Its totient is φ = 73102176.

The previous prime is 128087459. The next prime is 128087471. The reversal of 128087463 is 364780821.

It is not a de Polignac number, because 128087463 - 2² = 128087459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128087413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15981 + ... + 22617.

It is an arithmetic number, because the mean of its divisors is an integer number (12213920).

Almost surely, 2^128087463 is an apocalyptic number.

128087463 is a deficient number, since it is larger than the sum of its proper divisors (67335257).

128087463 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 128087463 = (287014863)₉.

128087463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 128087463 is about 11317.5731939316. The cubic root of 128087463 is about 504.0831818174.

The spelling of 128087463 in words is "one hundred twenty-eight million, eighty-seven thousand, four hundred sixty-three".