127242120 has 32 divisors (see below), whose sum is σ = 381726720. Its totient is φ = 33931200.

The previous prime is 127242119. The next prime is 127242253. The reversal of 127242120 is 21242721.

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, 530056 + ... + 530295.

It is an arithmetic number, because the mean of its divisors is an integer number (11928960).

Almost surely, 2^127242120 is an apocalyptic number.

127242120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127242120 is an abundant number, since it is smaller than the sum of its proper divisors (254484600).

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

127242120 is a wasteful number, since it uses less digits than its factorization.

127242120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060365 (or 1060361 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 127242120 is about 11280.1648924118. The cubic root of 127242120 is about 502.9717952057.

Adding to 127242120 its reverse (21242721), we get a palindrome (148484841).

The spelling of 127242120 in words is "one hundred twenty-seven million, two hundred forty-two thousand, one hundred twenty".