127791140 has 24 divisors (see below), whose sum is σ = 269370360. Its totient is φ = 50924288.

The previous prime is 127791127. The next prime is 127791161. The reversal of 127791140 is 41197721.

It can be written as a sum of positive squares in 4 ways, for example, as 3602404 + 124188736 = 1898^2 + 11144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127791097 and 127791106.

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, 6497 + ... + 17256.

It is an arithmetic number, because the mean of its divisors is an integer number (11223765).

Almost surely, 2^127791140 is an apocalyptic number.

127791140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127791140 is an abundant number, since it is smaller than the sum of its proper divisors (141579220).

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

127791140 is a wasteful number, since it uses less digits than its factorization.

127791140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24031 (or 24029 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 127791140 is about 11304.4743354125. The cubic root of 127791140 is about 503.6941591582.

The spelling of 127791140 in words is "one hundred twenty-seven million, seven hundred ninety-one thousand, one hundred forty".