128460837 has 4 divisors (see below), whose sum is σ = 171281120. Its totient is φ = 85640556.

The previous prime is 128460833. The next prime is 128460851. The reversal of 128460837 is 738064821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 128460837 - 2² = 128460833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128460795 and 128460804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128460833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21410137 + ... + 21410142.

It is an arithmetic number, because the mean of its divisors is an integer number (42820280).

Almost surely, 2^128460837 is an apocalyptic number.

It is an amenable number.

128460837 is a deficient number, since it is larger than the sum of its proper divisors (42820283).

128460837 is an equidigital number, since it uses as much as digits as its factorization.

128460837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42820282.

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

The square root of 128460837 is about 11334.0565112408. The cubic root of 128460837 is about 504.5725062386.

The spelling of 128460837 in words is "one hundred twenty-eight million, four hundred sixty thousand, eight hundred thirty-seven".