127641313 has 2 divisors, whose sum is σ = 127641314. Its totient is φ = 127641312.

The previous prime is 127641277. The next prime is 127641343. The reversal of 127641313 is 313146721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71436304 + 56205009 = 8452^2 + 7497^2 .

It is an emirp because it is prime and its reverse (313146721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127641313 is a prime.

It is not a weakly prime, because it can be changed into another prime (127641343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63820656 + 63820657.

It is an arithmetic number, because the mean of its divisors is an integer number (63820657).

Almost surely, 2^127641313 is an apocalyptic number.

It is an amenable number.

127641313 is a deficient number, since it is larger than the sum of its proper divisors (1).

127641313 is an equidigital number, since it uses as much as digits as its factorization.

127641313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 127641313 is about 11297.8455025726. The cubic root of 127641313 is about 503.4972323670.

The spelling of 127641313 in words is "one hundred twenty-seven million, six hundred forty-one thousand, three hundred thirteen".