127397140 has 24 divisors (see below), whose sum is σ = 288114120. Its totient is φ = 47038848.

The previous prime is 127397131. The next prime is 127397143. The reversal of 127397140 is 41793721.

127397140 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2762244 + 124634896 = 1662^2 + 11164^2 .

127397140 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 127397096 and 127397105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127397143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244735 + ... + 245254.

It is an arithmetic number, because the mean of its divisors is an integer number (12004755).

Almost surely, 2^127397140 is an apocalyptic number.

127397140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127397140 is an abundant number, since it is smaller than the sum of its proper divisors (160716980).

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

127397140 is a wasteful number, since it uses less digits than its factorization.

127397140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490011 (or 490009 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 127397140 is about 11287.0341542852. The cubic root of 127397140 is about 503.1759703772.

The spelling of 127397140 in words is "one hundred twenty-seven million, three hundred ninety-seven thousand, one hundred forty".