128126627 has 16 divisors (see below), whose sum is σ = 136215552. Its totient is φ = 120324960.

The previous prime is 128126623. The next prime is 128126641. The reversal of 128126627 is 726621821.

It is a cyclic number.

It is not a de Polignac number, because 128126627 - 2² = 128126623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128126623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369068 + ... + 369414.

It is an arithmetic number, because the mean of its divisors is an integer number (8513472).

Almost surely, 2^128126627 is an apocalyptic number.

128126627 is a deficient number, since it is larger than the sum of its proper divisors (8088925).

128126627 is a wasteful number, since it uses less digits than its factorization.

128126627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698.

The product of its digits is 16128, while the sum is 35.

The square root of 128126627 is about 11319.3032912808. The cubic root of 128126627 is about 504.1345527101.

The spelling of 128126627 in words is "one hundred twenty-eight million, one hundred twenty-six thousand, six hundred twenty-seven".