127180013 has 2 divisors, whose sum is σ = 127180014. Its totient is φ = 127180012.

The previous prime is 127179973. The next prime is 127180057. The reversal of 127180013 is 310081721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126382564 + 797449 = 11242^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 127180013 - 2²⁰ = 126131437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127183013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63590006 + 63590007.

It is an arithmetic number, because the mean of its divisors is an integer number (63590007).

Almost surely, 2^127180013 is an apocalyptic number.

It is an amenable number.

127180013 is a deficient number, since it is larger than the sum of its proper divisors (1).

127180013 is an equidigital number, since it uses as much as digits as its factorization.

127180013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 127180013 is about 11277.4116267874. The cubic root of 127180013 is about 502.8899482169.

The spelling of 127180013 in words is "one hundred twenty-seven million, one hundred eighty thousand, thirteen".