127501275149 has 4 divisors (see below), whose sum is σ = 127986071136. Its totient is φ = 127016479164.

The previous prime is 127501275107. The next prime is 127501275173. The reversal of 127501275149 is 941572105721.

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 127501275149 - 2¹⁶ = 127501209613 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 (127501265149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242397599 + ... + 242398124.

It is an arithmetic number, because the mean of its divisors is an integer number (31996517784).

Almost surely, 2^127501275149 is an apocalyptic number.

It is an amenable number.

127501275149 is a deficient number, since it is larger than the sum of its proper divisors (484795987).

127501275149 is an equidigital number, since it uses as much as digits as its factorization.

127501275149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484795986.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 127501275149 in words is "one hundred twenty-seven billion, five hundred one million, two hundred seventy-five thousand, one hundred forty-nine".