127136840 has 16 divisors (see below), whose sum is σ = 286057980. Its totient is φ = 50854720.

The previous prime is 127136839. The next prime is 127136851. The reversal of 127136840 is 48631721.

It can be written as a sum of positive squares in 2 ways, for example, as 118504996 + 8631844 = 10886^2 + 2938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127136797 and 127136806.

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, 1589171 + ... + 1589250.

Almost surely, 2^127136840 is an apocalyptic number.

127136840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127136840 is an abundant number, since it is smaller than the sum of its proper divisors (158921140).

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

127136840 is a wasteful number, since it uses less digits than its factorization.

127136840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178432 (or 3178428 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 127136840 is about 11275.4973282778. The cubic root of 127136840 is about 502.8330374796.

The spelling of 127136840 in words is "one hundred twenty-seven million, one hundred thirty-six thousand, eight hundred forty".