127661140 has 12 divisors (see below), whose sum is σ = 268088436. Its totient is φ = 51064448.

The previous prime is 127661129. The next prime is 127661173. The reversal of 127661140 is 41166721.

It can be written as a sum of positive squares in 2 ways, for example, as 53494596 + 74166544 = 7314^2 + 8612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127661099 and 127661108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3191509 + ... + 3191548.

It is an arithmetic number, because the mean of its divisors is an integer number (22340703).

Almost surely, 2^127661140 is an apocalyptic number.

127661140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127661140 is an abundant number, since it is smaller than the sum of its proper divisors (140427296).

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

127661140 is a wasteful number, since it uses less digits than its factorization.

127661140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383066 (or 6383064 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 127661140 is about 11298.7229366863. The cubic root of 127661140 is about 503.5233010501.

The spelling of 127661140 in words is "one hundred twenty-seven million, six hundred sixty-one thousand, one hundred forty".