128231702 has 8 divisors (see below), whose sum is σ = 195218616. Its totient is φ = 63158832.

The previous prime is 128231683. The next prime is 128231711. The reversal of 128231702 is 207132821.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478343 + ... + 478610.

It is an arithmetic number, because the mean of its divisors is an integer number (24402327).

Almost surely, 2^128231702 is an apocalyptic number.

128231702 is a deficient number, since it is larger than the sum of its proper divisors (66986914).

128231702 is an equidigital number, since it uses as much as digits as its factorization.

128231702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957022.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 128231702 is about 11323.9437476526. The cubic root of 128231702 is about 504.2723264772.

The spelling of 128231702 in words is "one hundred twenty-eight million, two hundred thirty-one thousand, seven hundred two".