128674147 has 6 divisors (see below), whose sum is σ = 149682228. Its totient is φ = 110292084.

The previous prime is 128674129. The next prime is 128674159. The reversal of 128674147 is 741476821.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-128674147 is a prime.

It is a super-2 number, since 2×128674147² = 33114072212355218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128674127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1312953 + ... + 1313050.

It is an arithmetic number, because the mean of its divisors is an integer number (24947038).

Almost surely, 2^128674147 is an apocalyptic number.

128674147 is a deficient number, since it is larger than the sum of its proper divisors (21008081).

128674147 is an equidigital number, since it uses as much as digits as its factorization.

128674147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626017 (or 2626010 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 128674147 is about 11343.4627429194. The cubic root of 128674147 is about 504.8516337016.

It can be divided in two parts, 128674 and 147, that added together give a palindrome (128821).

The spelling of 128674147 in words is "one hundred twenty-eight million, six hundred seventy-four thousand, one hundred forty-seven".