127025253249 has 4 divisors (see below), whose sum is σ = 169367004336. Its totient is φ = 84683502164.

The previous prime is 127025253247. The next prime is 127025253259. The reversal of 127025253249 is 942352520721.

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 not a de Polignac number, because 127025253249 - 2¹ = 127025253247 is a prime.

It is a super-2 number, since 2×127025253249² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127025253249.

It is not an unprimeable number, because it can be changed into a prime (127025253247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21170875539 + ... + 21170875544.

It is an arithmetic number, because the mean of its divisors is an integer number (42341751084).

Almost surely, 2^127025253249 is an apocalyptic number.

It is an amenable number.

127025253249 is a deficient number, since it is larger than the sum of its proper divisors (42341751087).

127025253249 is an equidigital number, since it uses as much as digits as its factorization.

127025253249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42341751086.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 127025253249 in words is "one hundred twenty-seven billion, twenty-five million, two hundred fifty-three thousand, two hundred forty-nine".