127975213 has 2 divisors, whose sum is σ = 127975214. Its totient is φ = 127975212.

The previous prime is 127975207. The next prime is 127975249. The reversal of 127975213 is 312579721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127306089 + 669124 = 11283^2 + 818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127975213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127975283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63987606 + 63987607.

It is an arithmetic number, because the mean of its divisors is an integer number (63987607).

Almost surely, 2^127975213 is an apocalyptic number.

It is an amenable number.

127975213 is a deficient number, since it is larger than the sum of its proper divisors (1).

127975213 is an equidigital number, since it uses as much as digits as its factorization.

127975213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 127975213 is about 11312.6130049604. The cubic root of 127975213 is about 503.9358869588.

The spelling of 127975213 in words is "one hundred twenty-seven million, nine hundred seventy-five thousand, two hundred thirteen".