128062831 has 8 divisors (see below), whose sum is σ = 145172720. Its totient is φ = 111989952.

The previous prime is 128062817. The next prime is 128062867. The reversal of 128062831 is 138260821.

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

It is not a de Polignac number, because 128062831 - 2⁷ = 128062703 is a prime.

It is a super-2 number, since 2×128062831² = 32800177367469122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128062793 and 128062802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128062031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258990 + ... + 259483.

It is an arithmetic number, because the mean of its divisors is an integer number (18146590).

Almost surely, 2^128062831 is an apocalyptic number.

128062831 is a deficient number, since it is larger than the sum of its proper divisors (17109889).

128062831 is a wasteful number, since it uses less digits than its factorization.

128062831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518505.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 128062831 is about 11316.4849224483. The cubic root of 128062831 is about 504.0508669895.

The spelling of 128062831 in words is "one hundred twenty-eight million, sixty-two thousand, eight hundred thirty-one".