128413831 has 8 divisors (see below), whose sum is σ = 158047904. Its totient is φ = 101602080.

The previous prime is 128413819. The next prime is 128413877. The reversal of 128413831 is 138314821.

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

It is a cyclic number.

It is not a de Polignac number, because 128413831 - 2¹³ = 128405639 is a prime.

It is a super-2 number, since 2×128413831² = 32980223984193122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128413793 and 128413802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128413931) 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, 705480 + ... + 705661.

It is an arithmetic number, because the mean of its divisors is an integer number (19755988).

Almost surely, 2^128413831 is an apocalyptic number.

128413831 is a deficient number, since it is larger than the sum of its proper divisors (29634073).

128413831 is a wasteful number, since it uses less digits than its factorization.

128413831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411161.

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

The square root of 128413831 is about 11331.9826597114. The cubic root of 128413831 is about 504.5109548498.

The spelling of 128413831 in words is "one hundred twenty-eight million, four hundred thirteen thousand, eight hundred thirty-one".