127945545 has 64 divisors (see below), whose sum is σ = 255897600. Its totient is φ = 53146368.

The previous prime is 127945541. The next prime is 127945561. The reversal of 127945545 is 545549721.

It is not a de Polignac number, because 127945545 - 2² = 127945541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 127945497 and 127945506.

It is not an unprimeable number, because it can be changed into a prime (127945541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90756 + ... + 92154.

It is an arithmetic number, because the mean of its divisors is an integer number (3998400).

Almost surely, 2^127945545 is an apocalyptic number.

127945545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127945545 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

127945545 is a wasteful number, since it uses less digits than its factorization.

127945545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its digits is 252000, while the sum is 42.

The square root of 127945545 is about 11311.3016492356. The cubic root of 127945545 is about 503.8969421116.

The spelling of 127945545 in words is "one hundred twenty-seven million, nine hundred forty-five thousand, five hundred forty-five".