127873975 has 6 divisors (see below), whose sum is σ = 158563760. Its totient is φ = 102299160.

The previous prime is 127873973. The next prime is 127873987. The reversal of 127873975 is 579378721.

It is a happy number.

It is not a de Polignac number, because 127873975 - 2¹ = 127873973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127873973) 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 5 ways as a sum of consecutive naturals, for example, 2557455 + ... + 2557504.

Almost surely, 2^127873975 is an apocalyptic number.

127873975 is a deficient number, since it is larger than the sum of its proper divisors (30689785).

127873975 is an equidigital number, since it uses as much as digits as its factorization.

127873975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114969 (or 5114964 counting only the distinct ones).

The product of its digits is 740880, while the sum is 49.

The square root of 127873975 is about 11308.1375566448. The cubic root of 127873975 is about 503.8029681982.

The spelling of 127873975 in words is "one hundred twenty-seven million, eight hundred seventy-three thousand, nine hundred seventy-five".