127794545 has 4 divisors (see below), whose sum is σ = 153353460. Its totient is φ = 102235632.

The previous prime is 127794497. The next prime is 127794547. The reversal of 127794545 is 545497721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20133169 + 107661376 = 4487^2 + 10376^2 .

It is a cyclic number.

It is not a de Polignac number, because 127794545 - 2⁶ = 127794481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127794496 and 127794505.

It is not an unprimeable number, because it can be changed into a prime (127794547) 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, 12779450 + ... + 12779459.

It is an arithmetic number, because the mean of its divisors is an integer number (38338365).

Almost surely, 2^127794545 is an apocalyptic number.

It is an amenable number.

127794545 is a deficient number, since it is larger than the sum of its proper divisors (25558915).

127794545 is an equidigital number, since it uses as much as digits as its factorization.

127794545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25558914.

The product of its digits is 352800, while the sum is 44.

The square root of 127794545 is about 11304.6249384931. The cubic root of 127794545 is about 503.6986327688.

The spelling of 127794545 in words is "one hundred twenty-seven million, seven hundred ninety-four thousand, five hundred forty-five".