127481401 has 2 divisors, whose sum is σ = 127481402. Its totient is φ = 127481400.

The previous prime is 127481383. The next prime is 127481407. The reversal of 127481401 is 104184721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93141801 + 34339600 = 9651^2 + 5860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127481401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127481401.

It is not a weakly prime, because it can be changed into another prime (127481407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63740700 + 63740701.

It is an arithmetic number, because the mean of its divisors is an integer number (63740701).

Almost surely, 2^127481401 is an apocalyptic number.

It is an amenable number.

127481401 is a deficient number, since it is larger than the sum of its proper divisors (1).

127481401 is an equidigital number, since it uses as much as digits as its factorization.

127481401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 127481401 is about 11290.7661830365. The cubic root of 127481401 is about 503.2868801576.

The spelling of 127481401 in words is "one hundred twenty-seven million, four hundred eighty-one thousand, four hundred one".