127750005 has 12 divisors (see below), whose sum is σ = 221433420. Its totient is φ = 68133312.

The previous prime is 127750001. The next prime is 127750013. The reversal of 127750005 is 500057721.

It can be written as a sum of positive squares in 2 ways, for example, as 97180164 + 30569841 = 9858^2 + 5529^2 .

It is not a de Polignac number, because 127750005 - 2² = 127750001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127750001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1419400 + ... + 1419489.

It is an arithmetic number, because the mean of its divisors is an integer number (18452785).

Almost surely, 2^127750005 is an apocalyptic number.

127750005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127750005 is a deficient number, since it is larger than the sum of its proper divisors (93683415).

127750005 is a wasteful number, since it uses less digits than its factorization.

127750005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838900 (or 2838897 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 127750005 is about 11302.6547766443. The cubic root of 127750005 is about 503.6401082468.

The spelling of 127750005 in words is "one hundred twenty-seven million, seven hundred fifty thousand, five".