128567263 has 8 divisors (see below), whose sum is σ = 146353536. Its totient is φ = 111797400.

The previous prime is 128567233. The next prime is 128567273. The reversal of 128567263 is 362765821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128567263 - 2²⁵ = 95012831 is a prime.

It is a super-2 number, since 2×128567263² = 33059082230622338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128567213) 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 in 7 ways as a sum of consecutive naturals, for example, 253833 + ... + 254338.

It is an arithmetic number, because the mean of its divisors is an integer number (18294192).

Almost surely, 2^128567263 is an apocalyptic number.

128567263 is a deficient number, since it is larger than the sum of its proper divisors (17786273).

128567263 is a wasteful number, since it uses less digits than its factorization.

128567263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508205.

The product of its digits is 120960, while the sum is 40.

The square root of 128567263 is about 11338.7505043545. The cubic root of 128567263 is about 504.7118089037.

The spelling of 128567263 in words is "one hundred twenty-eight million, five hundred sixty-seven thousand, two hundred sixty-three".