127305745 has 16 divisors (see below), whose sum is σ = 174786048. Its totient is φ = 87197760.

The previous prime is 127305733. The next prime is 127305767. The reversal of 127305745 is 547503721.

It is not a de Polignac number, because 127305745 - 2⁷ = 127305617 is a prime.

It is a super-3 number, since 3×127305745³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127305745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45075 + ... + 47815.

It is an arithmetic number, because the mean of its divisors is an integer number (10924128).

Almost surely, 2^127305745 is an apocalyptic number.

It is an amenable number.

127305745 is a deficient number, since it is larger than the sum of its proper divisors (47480303).

127305745 is a wasteful number, since it uses less digits than its factorization.

127305745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 127305745 is about 11282.9847558171. The cubic root of 127305745 is about 503.0556150604.

The spelling of 127305745 in words is "one hundred twenty-seven million, three hundred five thousand, seven hundred forty-five".