127125601 has 8 divisors (see below), whose sum is σ = 128063264. Its totient is φ = 126191520.

The previous prime is 127125547. The next prime is 127125611. The reversal of 127125601 is 106521721.

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 127125601 - 2¹⁷ = 126994529 is a prime.

It is a super-2 number, since 2×127125601² = 32321836859222402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127125611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135205 + ... + 136141.

It is an arithmetic number, because the mean of its divisors is an integer number (16007908).

Almost surely, 2^127125601 is an apocalyptic number.

It is an amenable number.

127125601 is a deficient number, since it is larger than the sum of its proper divisors (937663).

127125601 is an equidigital number, since it uses as much as digits as its factorization.

127125601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 127125601 is about 11274.9989356984. The cubic root of 127125601 is about 502.8182200932.

The spelling of 127125601 in words is "one hundred twenty-seven million, one hundred twenty-five thousand, six hundred one".