127713601 has 4 divisors (see below), whose sum is σ = 127736532. Its totient is φ = 127690672.

The previous prime is 127713587. The next prime is 127713629. The reversal of 127713601 is 106317721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106317721 = 2131 ⋅49891.

It can be written as a sum of positive squares in 2 ways, for example, as 11397376 + 116316225 = 3376^2 + 10785^2 .

It is a cyclic number.

It is not a de Polignac number, because 127713601 - 2⁷ = 127713473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127713601.

It is not an unprimeable number, because it can be changed into a prime (127710601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2835 + ... + 16231.

It is an arithmetic number, because the mean of its divisors is an integer number (31934133).

Almost surely, 2^127713601 is an apocalyptic number.

It is an amenable number.

127713601 is a deficient number, since it is larger than the sum of its proper divisors (22931).

127713601 is an equidigital number, since it uses as much as digits as its factorization.

127713601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22930.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 127713601 is about 11301.0442437856. The cubic root of 127713601 is about 503.5922641356.

It can be divided in two parts, 1277 and 13601, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 127713601 in words is "one hundred twenty-seven million, seven hundred thirteen thousand, six hundred one".