127240256667253 has 4 divisors (see below), whose sum is σ = 127240291956448. Its totient is φ = 127240221378060.

The previous prime is 127240256667217. The next prime is 127240256667257. The reversal of 127240256667253 is 352766652042721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127240256667253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127240256667257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11529753 + ... + 19682878.

It is an arithmetic number, because the mean of its divisors is an integer number (31810072989112).

Almost surely, 2^{127240256667253} is an apocalyptic number.

It is an amenable number.

127240256667253 is a deficient number, since it is larger than the sum of its proper divisors (35289195).

127240256667253 is an equidigital number, since it uses as much as digits as its factorization.

127240256667253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35289194.

The product of its (nonzero) digits is 50803200, while the sum is 58.

The spelling of 127240256667253 in words is "one hundred twenty-seven trillion, two hundred forty billion, two hundred fifty-six million, six hundred sixty-seven thousand, two hundred fifty-three".