127055780 has 24 divisors (see below), whose sum is σ = 274030008. Its totient is φ = 49448448.

The previous prime is 127055737. The next prime is 127055791. The reversal of 127055780 is 87550721.

It can be written as a sum of positive squares in 4 ways, for example, as 14992384 + 112063396 = 3872^2 + 10586^2 .

It is a super-2 number, since 2×127055780² = 32286342462816800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127055780.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85109 + ... + 86588.

It is an arithmetic number, because the mean of its divisors is an integer number (11417917).

Almost surely, 2^127055780 is an apocalyptic number.

127055780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127055780 is an abundant number, since it is smaller than the sum of its proper divisors (146974228).

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

127055780 is a wasteful number, since it uses less digits than its factorization.

127055780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171743 (or 171741 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 127055780 is about 11271.9022352041. The cubic root of 127055780 is about 502.7261492071.

The spelling of 127055780 in words is "one hundred twenty-seven million, fifty-five thousand, seven hundred eighty".