127745506 has 16 divisors (see below), whose sum is σ = 219360960. Its totient is φ = 54655920.

The previous prime is 127745503. The next prime is 127745533. The reversal of 127745506 is 605547721.

It is not an unprimeable number, because it can be changed into a prime (127745503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (13710060).

Almost surely, 2^127745506 is an apocalyptic number.

127745506 is a deficient number, since it is larger than the sum of its proper divisors (91615454).

127745506 is a wasteful number, since it uses less digits than its factorization.

127745506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15369.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 127745506 is about 11302.4557508534. The cubic root of 127745506 is about 503.6341959092.

The spelling of 127745506 in words is "one hundred twenty-seven million, seven hundred forty-five thousand, five hundred six".