127630385 has 4 divisors (see below), whose sum is σ = 153156468. Its totient is φ = 102104304.

The previous prime is 127630351. The next prime is 127630387. The reversal of 127630385 is 583036721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583036721 = 113 ⋅5159617.

It can be written as a sum of positive squares in 2 ways, for example, as 83101456 + 44528929 = 9116^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 127630385 - 2²² = 123436081 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127630387) 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, 12763034 + ... + 12763043.

It is an arithmetic number, because the mean of its divisors is an integer number (38289117).

Almost surely, 2^127630385 is an apocalyptic number.

It is an amenable number.

127630385 is a deficient number, since it is larger than the sum of its proper divisors (25526083).

127630385 is an equidigital number, since it uses as much as digits as its factorization.

127630385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25526082.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 127630385 is about 11297.3618601867. The cubic root of 127630385 is about 503.4828629996.

The spelling of 127630385 in words is "one hundred twenty-seven million, six hundred thirty thousand, three hundred eighty-five".