127540393 has 2 divisors, whose sum is σ = 127540394. Its totient is φ = 127540392.

The previous prime is 127540351. The next prime is 127540429. The reversal of 127540393 is 393045721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127170729 + 369664 = 11277^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 127540393 - 2¹³ = 127532201 is a prime.

It is not a weakly prime, because it can be changed into another prime (127540793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63770196 + 63770197.

It is an arithmetic number, because the mean of its divisors is an integer number (63770197).

Almost surely, 2^127540393 is an apocalyptic number.

It is an amenable number.

127540393 is a deficient number, since it is larger than the sum of its proper divisors (1).

127540393 is an equidigital number, since it uses as much as digits as its factorization.

127540393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 127540393 is about 11293.3782810991. The cubic root of 127540393 is about 503.3645001631.

The spelling of 127540393 in words is "one hundred twenty-seven million, five hundred forty thousand, three hundred ninety-three".