127901131 has 2 divisors, whose sum is σ = 127901132. Its totient is φ = 127901130.

The previous prime is 127901117. The next prime is 127901231. The reversal of 127901131 is 131109721.

It is a weak prime.

It is an emirp because it is prime and its reverse (131109721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127901131 - 2⁷ = 127901003 is a prime.

It is a super-2 number, since 2×127901131² = 32717398622158322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127901096 and 127901105.

It is not a weakly prime, because it can be changed into another prime (127901101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63950565 + 63950566.

It is an arithmetic number, because the mean of its divisors is an integer number (63950566).

Almost surely, 2^127901131 is an apocalyptic number.

127901131 is a deficient number, since it is larger than the sum of its proper divisors (1).

127901131 is an equidigital number, since it uses as much as digits as its factorization.

127901131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 127901131 is about 11309.3382211339. The cubic root of 127901131 is about 503.8386291032.

The spelling of 127901131 in words is "one hundred twenty-seven million, nine hundred one thousand, one hundred thirty-one".