127545920 has 28 divisors (see below), whose sum is σ = 303719484. Its totient is φ = 51018240.

The previous prime is 127545911. The next prime is 127545941. The reversal of 127545920 is 29545721.

127545920 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 95101504 + 32444416 = 9752^2 + 5696^2 .

It is a zygodrome in base 3.

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 3 ways as a sum of consecutive naturals, for example, 198971 + ... + 199610.

Almost surely, 2^127545920 is an apocalyptic number.

127545920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127545920 is an abundant number, since it is smaller than the sum of its proper divisors (176173564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127545920 is an equidigital number, since it uses as much as digits as its factorization.

127545920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398598 (or 398588 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 127545920 is about 11293.6229793632. The cubic root of 127545920 is about 503.3717712070.

The spelling of 127545920 in words is "one hundred twenty-seven million, five hundred forty-five thousand, nine hundred twenty".