127540513161 has 6 divisors (see below), whose sum is σ = 184225185690. Its totient is φ = 85027008768.

The previous prime is 127540513151. The next prime is 127540513207. The reversal of 127540513161 is 161315045721.

127540513161 is a `hidden beast` number, since 1 + 2 + 7 + 540 + 51 + 3 + 1 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121630747536 + 5909765625 = 348756^2 + 76875^2 .

It is not a de Polignac number, because 127540513161 - 2¹¹ = 127540511113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127540513151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7085584056 + ... + 7085584073.

It is an arithmetic number, because the mean of its divisors is an integer number (30704197615).

Almost surely, 2^127540513161 is an apocalyptic number.

It is an amenable number.

127540513161 is a deficient number, since it is larger than the sum of its proper divisors (56684672529).

127540513161 is a wasteful number, since it uses less digits than its factorization.

127540513161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171168135 (or 14171168132 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

Adding to 127540513161 its reverse (161315045721), we get a palindrome (288855558882).

The spelling of 127540513161 in words is "one hundred twenty-seven billion, five hundred forty million, five hundred thirteen thousand, one hundred sixty-one".